diff --git a/.github/workflows/automerge.yml b/.github/workflows/automerge.yml
index 5547d0decda..582e845b0ff 100644
--- a/.github/workflows/automerge.yml
+++ b/.github/workflows/automerge.yml
@@ -9,7 +9,7 @@ jobs:
     steps:
       - name: 'Wait for status checks'
         id: waitforstatuschecks
-        uses: "WyriHaximus/github-action-wait-for-status@v1.5"
+        uses: "WyriHaximus/github-action-wait-for-status@v1.6"
         with:
           ignoreActions: Automerge Dependabot,Code coverage,Create snapcraft image,Deploy binaries on builds.jabref.org,codecov/project,markdown-link-check
           checkInterval: 13
diff --git a/.github/workflows/deployment.yml b/.github/workflows/deployment.yml
index c9b777f82a1..121fb51d795 100644
--- a/.github/workflows/deployment.yml
+++ b/.github/workflows/deployment.yml
@@ -22,6 +22,7 @@ env:
   SpringerNatureAPIKey: ${{ secrets.SpringerNatureAPIKey }}
   AstrophysicsDataSystemAPIKey: ${{ secrets.AstrophysicsDataSystemAPIKey }}
   IEEEAPIKey: ${{ secrets.IEEEAPIKey }}
+  BiodiversityHeritageApiKey: ${{ secrets.BiodiversityHeritageApiKey}}
   OSXCERT: ${{ secrets.OSX_SIGNING_CERT }}
   GRADLE_OPTS: -Xmx4g -Dorg.gradle.daemon=false -Dorg.gradle.vfs.watch=false
   JAVA_OPTS: -Xmx4g
@@ -64,7 +65,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:
-          java-version: 17
+          java-version: 18
           distribution: 'temurin'
           cache: 'gradle'
       - name: Setup OSX key chain on OSX
diff --git a/.github/workflows/refresh-csl-subtrees.yml b/.github/workflows/refresh-csl-subtrees.yml
index 8a1b647b0a6..85aad208e7e 100644
--- a/.github/workflows/refresh-csl-subtrees.yml
+++ b/.github/workflows/refresh-csl-subtrees.yml
@@ -6,6 +6,9 @@ on:
     - cron: '1 2 1,15 * *'
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   publish:
     name: Refresh Citation Style Language Files
diff --git a/.github/workflows/refresh-journal-lists.yml b/.github/workflows/refresh-journal-lists.yml
index 87b09f81785..d975875963a 100644
--- a/.github/workflows/refresh-journal-lists.yml
+++ b/.github/workflows/refresh-journal-lists.yml
@@ -4,8 +4,14 @@ on:
   workflow_dispatch:
     # Allow to run manually
 
+permissions:
+  contents: read
+
 jobs:
   publish:
+    permissions:
+      contents: write  # for peter-evans/create-pull-request to create branch
+      pull-requests: write  # for peter-evans/create-pull-request to create a PR
     name: Refresh Journal List Files
     runs-on: ubuntu-latest
     steps:
@@ -18,7 +24,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:
-          java-version: 17
+          java-version: 18
           distribution: 'temurin'
           cache: 'gradle'
       - name: Update journal lists
diff --git a/.github/workflows/tests-fetchers.yml b/.github/workflows/tests-fetchers.yml
index ebc3ac6ada6..8bf681fb7cc 100644
--- a/.github/workflows/tests-fetchers.yml
+++ b/.github/workflows/tests-fetchers.yml
@@ -26,11 +26,15 @@ env:
   SpringerNatureAPIKey: ${{ secrets.SPRINGERNATUREAPIKEY_FOR_TESTS }}
   AstrophysicsDataSystemAPIKey: ${{ secrets.AstrophysicsDataSystemAPIKey_FOR_TESTS }}
   IEEEAPIKey: ${{ secrets.IEEEAPIKey_FOR_TESTS }}
+  BiodiversityHeritageApiKey: ${{ secrets.BiodiversityHeritageApiKey_FOR_TESTS}}
 
 concurrency:
   group: fetcher-tests-${{ github.head_ref }}
   cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
   fetchertests:
     name: Fetcher tests
@@ -41,7 +45,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:
-          java-version: 17
+          java-version: 18
           distribution: 'temurin'
           cache: 'gradle'
       - name: Run fetcher tests
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index d057c72964d..e44b50251e1 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -13,6 +13,7 @@ env:
   SpringerNatureAPIKey: ${{ secrets.SpringerNatureAPIKey }}
   AstrophysicsDataSystemAPIKey: ${{ secrets.AstrophysicsDataSystemAPIKey }}
   IEEEAPIKey: ${{ secrets.IEEEAPIKey }}
+  BiodiversityHeritageApiKey: ${{ secrets.BiodiversityHeritageApiKey}}
   GRADLE_OPTS: -Xmx4g
   JAVA_OPTS: -Xmx4g
 
@@ -30,7 +31,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:
-          java-version: 17
+          java-version: 18
           distribution: 'temurin'
           cache: 'gradle'
       - name: Run check style reporter
@@ -55,7 +56,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:
-          java-version: 17
+          java-version: 18
           distribution: 'temurin'
           cache: 'gradle'
       - name: Run tests
@@ -87,7 +88,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:
-          java-version: 17
+          java-version: 18
           distribution: 'temurin'
           cache: 'gradle'
       - name: Run tests on PostgreSQL
@@ -121,7 +122,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:
-          java-version: 17
+          java-version: 18
           distribution: 'temurin'
           cache: 'gradle'
       - name: Run GUI tests
@@ -159,7 +160,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:
-          java-version: 17
+          java-version: 18
           distribution: 'temurin'
           cache: 'gradle'
       - name: Update test coverage metrics
diff --git a/.idea/runConfigurations/JabRef_Main.xml b/.idea/runConfigurations/JabRef_Main.xml
index a588730b31a..731578b5c75 100644
--- a/.idea/runConfigurations/JabRef_Main.xml
+++ b/.idea/runConfigurations/JabRef_Main.xml
@@ -2,7 +2,7 @@
   <configuration default="false" name="JabRef Main" type="Application" factoryName="Application" singleton="true">
     <option name="MAIN_CLASS_NAME" value="org.jabref.gui.JabRefMain" />
     <module name="JabRef.main" />
-    <option name="VM_PARAMETERS" value="--patch-module test=fastparse_2.12-1.0.0.jar --patch-module test2=fastparse-utils_2.12-1.0.0.jar --patch-module test3=sourcecode_2.12-0.1.4.jar --patch-module org.jabref=build/resources/main --add-exports javafx.controls/com.sun.javafx.scene.control=org.jabref --add-exports org.controlsfx.controls/impl.org.controlsfx.skin=org.jabref --add-opens javafx.controls/javafx.scene.control=org.jabref --add-opens org.controlsfx.controls/org.controlsfx.control.textfield=org.jabref --add-exports javafx.graphics/com.sun.javafx.scene=org.controlsfx.controls --add-exports javafx.graphics/com.sun.javafx.scene.traversal=org.controlsfx.controls --add-exports javafx.graphics/com.sun.javafx.css=org.controlsfx.controls --add-exports javafx.controls/com.sun.javafx.scene.control.behavior=org.controlsfx.controls --add-exports javafx.controls/com.sun.javafx.scene.control=org.controlsfx.controls --add-exports javafx.controls/com.sun.javafx.scene.control.inputmap=org.controlsfx.controls --add-exports javafx.base/com.sun.javafx.event=org.controlsfx.controls --add-exports javafx.base/com.sun.javafx.collections=org.controlsfx.controls --add-exports javafx.base/com.sun.javafx.runtime=org.controlsfx.controls --add-exports javafx.web/com.sun.webkit=org.controlsfx.controls --add-exports javafx.graphics/com.sun.javafx.css=org.controlsfx.controls --add-opens javafx.controls/javafx.scene.control.skin=org.controlsfx.controls --add-opens javafx.graphics/javafx.scene=org.controlsfx.controls --add-exports com.oracle.truffle.regex/com.oracle.truffle.regex=org.graalvm.truffle --add-exports javafx.graphics/com.sun.javafx.stage=com.jfoenix --add-exports javafx.controls/com.sun.javafx.scene.control.behavior=com.jfoenix" />
+    <option name="VM_PARAMETERS" value="--patch-module org.jabref=build/resources/main --add-exports javafx.controls/com.sun.javafx.scene.control=org.jabref --add-exports org.controlsfx.controls/impl.org.controlsfx.skin=org.jabref --add-opens javafx.controls/javafx.scene.control=org.jabref --add-opens org.controlsfx.controls/org.controlsfx.control.textfield=org.jabref --add-exports javafx.graphics/com.sun.javafx.scene=org.controlsfx.controls --add-exports javafx.graphics/com.sun.javafx.scene.traversal=org.controlsfx.controls --add-exports javafx.graphics/com.sun.javafx.css=org.controlsfx.controls --add-exports javafx.controls/com.sun.javafx.scene.control.behavior=org.controlsfx.controls --add-exports javafx.controls/com.sun.javafx.scene.control=org.controlsfx.controls --add-exports javafx.controls/com.sun.javafx.scene.control.inputmap=org.controlsfx.controls --add-exports javafx.base/com.sun.javafx.event=org.controlsfx.controls --add-exports javafx.base/com.sun.javafx.collections=org.controlsfx.controls --add-exports javafx.base/com.sun.javafx.runtime=org.controlsfx.controls --add-exports javafx.web/com.sun.webkit=org.controlsfx.controls --add-exports javafx.graphics/com.sun.javafx.css=org.controlsfx.controls --add-opens javafx.controls/javafx.scene.control.skin=org.controlsfx.controls --add-opens javafx.graphics/javafx.scene=org.controlsfx.controls --add-exports com.oracle.truffle.regex/com.oracle.truffle.regex=org.graalvm.truffle --add-exports javafx.graphics/com.sun.javafx.stage=com.jfoenix --add-exports javafx.controls/com.sun.javafx.scene.control.behavior=com.jfoenix" />
     <option name="WORKING_DIRECTORY" value="$MODULE_WORKING_DIR$" />
     <RunnerSettings RunnerId="Profile ">
       <option name="myExternalizedOptions" value="additional-options2=onexit\=snapshot,_no_java_version_check&#13;&#10;startup=12" />
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3873391da6b..fd44ea36c2d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,12 +11,20 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 
 ### Added
 
+- We added a fetcher for [Biodiversity Heritage Library)](https://www.biodiversitylibrary.org/) [8539](https://github.com/JabRef/jabref/issues/8539)
+- We added support for multiple messages in the snackbar. [#7340](https://github.com/JabRef/jabref/issues/7340)
+
 ### Changed
 
+- We improved the Latex2Unicode conversion [#8639](https://github.com/JabRef/jabref/pull/8639)
+
 ### Fixed
 
-### Removed
+- We fixed the unnecessary horizontal scroll bar in group panel [#8467](https://github.com/JabRef/jabref/issues/8467)
+- We fixed an issue where the notification bar message, icon and actions appeared to be invisible. [#8761](https://github.com/JabRef/jabref/issues/8761)
+- We fixed an issue where deprecated fields tab is shown when the fields don't contain any values. [#8396](https://github.com/JabRef/jabref/issues/8396)
 
+### Removed
 
 
 
@@ -114,7 +122,6 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - We fixed an issue when writing a non-UTF-8 encoded file: The header is written again. [#8417](https://github.com/JabRef/jabref/issues/8417)
 - We fixed an issue where folder creation during systemic literature review failed due to an illegal fetcher name. [#8552](https://github.com/JabRef/jabref/pull/8552)
 
-
 ## [5.4] - 2021-12-20
 
 ### Added
@@ -246,7 +253,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - The tooltip of the search field explaining the search is always shown. [#7279](https://github.com/JabRef/jabref/pull/7279)
 - We rewrote the ACM fetcher to adapt to the new interface. [#5804](https://github.com/JabRef/jabref/issues/5804)
 - We moved the select/collapse buttons in the unlinked files dialog into a context menu. [#7383](https://github.com/JabRef/jabref/issues/7383)
-- We fixed an issue where journal abbreviations containing curly braces were not recognized  [#7773](https://github.com/JabRef/jabref/issues/7773)
+- We fixed an issue where journal abbreviations containing curly braces were not recognized [#7773](https://github.com/JabRef/jabref/issues/7773)
 
 ### Fixed
 
@@ -347,7 +354,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - We changed the title of the window "Manage field names and content" to have the same title as the corresponding menu item [#6895](https://github.com/JabRef/jabref/pull/6895)
 - We renamed the menus "View -> Previous citation style" and "View -> Next citation style" into "View -> Previous preview style" and "View -> Next preview style" and renamed the "Preview" style to "Customized preview style". [#6899](https://github.com/JabRef/jabref/pull/6899)
 - We changed the default preference option "Search and store files relative to library file location" to on, as this seems to be a more intuitive behaviour. [#6863](https://github.com/JabRef/jabref/issues/6863)
-- We changed the title of the window  "Manage field names and content":  to have the same title as the corresponding menu item  [#6895](https://github.com/JabRef/jabref/pull/6895)
+- We changed the title of the window "Manage field names and content": to have the same title as the corresponding menu item [#6895](https://github.com/JabRef/jabref/pull/6895)
 - We improved the detection of "short" DOIs [6880](https://github.com/JabRef/jabref/issues/6880)
 - We improved the duplicate detection when identifiers like DOI or arxiv are semantiaclly the same, but just syntactically differ (e.g. with or without http(s):// prefix). [#6707](https://github.com/JabRef/jabref/issues/6707)
 - We improved JabRef start up time [6057](https://github.com/JabRef/jabref/issues/6057)
@@ -356,7 +363,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - We changed the way JabRef displays the title of a tab and of the window. [4161](https://github.com/JabRef/jabref/issues/4161)
 - We changed connect timeouts for server requests to 30 seconds in general and 5 seconds for GROBID server (special) and improved user notifications on connection issues. [7026](https://github.com/JabRef/jabref/pull/7026)
 - We changed the order of the library tab context menu items. [#7171](https://github.com/JabRef/jabref/issues/7171)
-- We changed the way linked files are opened on Linux to use the native openFile method, compatible with confined  packages. [7037](https://github.com/JabRef/jabref/pull/7037)
+- We changed the way linked files are opened on Linux to use the native openFile method, compatible with confined packages. [7037](https://github.com/JabRef/jabref/pull/7037)
 - We refined the entry preview to show the full names of authors and editors, to list the editor only if no author is present, have the year earlier. [#7083](https://github.com/JabRef/jabref/issues/7083)
 
 ### Fixed
@@ -373,7 +380,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - We fixed an issue where it was impossible to connect to OpenOffice/LibreOffice on Mac OSX. [#6970](https://github.com/JabRef/jabref/pull/6970)
 - We fixed an issue with the python script used by browser plugins that failed to locate JabRef if not installed in its default location. [#6963](https://github.com/JabRef/jabref/pull/6963/files)
 - We fixed an issue where spaces and newlines in an isbn would generate an exception. [#6456](https://github.com/JabRef/jabref/issues/6456)
-- We fixed an issue where identity column header had incorrect foreground color in the  Dark theme. [#6796](https://github.com/JabRef/jabref/issues/6796)
+- We fixed an issue where identity column header had incorrect foreground color in the Dark theme. [#6796](https://github.com/JabRef/jabref/issues/6796)
 - We fixed an issue where the RIS exporter added extra blank lines.[#7007](https://github.com/JabRef/jabref/pull/7007/files)
 - We fixed an issue where clicking on Collapse All button in the Search for Unlinked Local Files expanded the directory structure erroneously [#6848](https://github.com/JabRef/jabref/issues/6848)
 - We fixed an issue, when pulling changes from shared database via shortcut caused creation of a new tech report [6867](https://github.com/JabRef/jabref/issues/6867)
@@ -662,7 +669,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - Use integrated graphics card instead of discrete on macOS [#4070](https://github.com/JabRef/jabref/issues/4070)
 - We added a cleanup operation that detects an arXiv identifier in the note, journal or URL field and moves it to the `eprint` field.
   Because of this change, the last-used cleanup operations were reset.
-- We changed the minimum required version of Java to 1.8.0_171, as this is the latest release for which the automatic Java update works.  [#4093](https://github.com/JabRef/jabref/issues/4093)
+- We changed the minimum required version of Java to 1.8.0_171, as this is the latest release for which the automatic Java update works. [#4093](https://github.com/JabRef/jabref/issues/4093)
 - The special fields like `Printed` and `Read status` now show gray icons when the row is hovered.
 - We added a button in the tab header which allows you to close the database with one click. [#494](https://github.com/JabRef/jabref/issues/494)
 - Sorting in the main table now takes information from cross-referenced entries into account. [#2808](https://github.com/JabRef/jabref/issues/2808)
@@ -689,8 +696,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - We optimized the code responsible for connecting to an external database, which should lead to huge improvements in performance.
 - For automatically created groups, added ability to filter groups by entry type. [#4539](https://github.com/JabRef/jabref/issues/4539)
 - We added the ability to add field names from the Preferences Dialog [#4546](https://github.com/JabRef/jabref/issues/4546)
-- We added the ability to change the column widths directly in the main
-. [#4546](https://github.com/JabRef/jabref/issues/4546)
+- We added the ability to change the column widths directly in the main table. [#4546](https://github.com/JabRef/jabref/issues/4546)
 - We added a description of how recommendations were chosen and better error handling to Related Articles tab
 - We added the ability to execute default action in dialog by using with <kbd>Ctrl</kbd> + <kbd>Enter</kbd> combination [#4496](https://github.com/JabRef/jabref/issues/4496)
 - We grouped and reordered the Main Menu (File, Edit, Library, Quality, Tools, and View tabs & icons). [#4666](https://github.com/JabRef/jabref/issues/4666) [#4667](https://github.com/JabRef/jabref/issues/4667) [#4668](https://github.com/JabRef/jabref/issues/4668) [#4669](https://github.com/JabRef/jabref/issues/4669) [#4670](https://github.com/JabRef/jabref/issues/4670) [#4671](https://github.com/JabRef/jabref/issues/4671) [#4672](https://github.com/JabRef/jabref/issues/4672) [#4673](https://github.com/JabRef/jabref/issues/4673)
@@ -780,7 +786,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 
 ### Removed
 
-- The feature to "mark entries" was removed and merged with the groups functionality.  For migration, a group is created for every value of the `__markedentry` field and the entry is added to this group.
+- The feature to "mark entries" was removed and merged with the groups functionality. For migration, a group is created for every value of the `__markedentry` field and the entry is added to this group.
 - The number column was removed.
 - We removed the global search feature.
 - We removed the coloring of cells in the main table according to whether the field is optional/required.
diff --git a/README.md b/README.md
index d328bb407c7..9a07d22f6d6 100644
--- a/README.md
+++ b/README.md
@@ -88,7 +88,7 @@ We will discuss improvements with you and agree to merge them once the [develope
 
 If you want a step-by-step walk-through on how to set-up your workspace, please check [this guideline](https://devdocs.jabref.org/getting-into-the-code/guidelines-for-setting-up-a-local-workspace).
 
-To compile JabRef from source, you need a Java Development Kit 15 and `JAVA_HOME` pointing to this JDK.
+To compile JabRef from source, you need a Java Development Kit 18 and `JAVA_HOME` pointing to this JDK.
 To run it, just execute `gradlew run`.
 When you want to develop, it is necessary to generate additional sources using `gradlew generateSource`
 and then generate the Eclipse `gradlew eclipse`.
diff --git a/build.gradle b/build.gradle
index 4ce7c128f63..2d47ab8005d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -12,7 +12,7 @@ plugins {
 
     id 'org.javamodularity.moduleplugin' version '1.8.10'
 
-    id 'org.openjfx.javafxplugin' version '0.0.12'
+    id 'org.openjfx.javafxplugin' version '0.0.13'
 
     id 'org.beryx.jlink' version '2.25.0'
 
@@ -40,8 +40,8 @@ group = "org.jabref"
 version = project.findProperty('projVersion') ?: '100.0.0'
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_17
-    targetCompatibility = JavaVersion.VERSION_17
+    sourceCompatibility = JavaVersion.VERSION_18
+    targetCompatibility = JavaVersion.VERSION_18
 
     // Workaround needed for Eclipse, probably because of https://github.com/gradle/gradle/issues/16922
     // Should be removed as soon as Gradle 7.0.1 is released ( https://github.com/gradle/gradle/issues/16922#issuecomment-828217060 )
@@ -53,12 +53,6 @@ application {
     mainModule.set('org.jabref')
 }
 
-// TODO: Ugly workaround to temporarily ignore build errors to dependencies of latex2unicode
-// These should be removed, as well as the files in the lib folder, as soon as they have valid module names
-modularity.patchModule("test", "fastparse_2.12-1.0.0.jar")
-modularity.patchModule("test2", "fastparse-utils_2.12-1.0.0.jar")
-modularity.patchModule("test3", "sourcecode_2.12-0.1.4.jar")
-
 // Workaround for https://github.com/openjfx/javafx-gradle-plugin/issues/89
 // See also https://github.com/java9-modularity/gradle-modules-plugin/issues/165
 modularity.disableEffectiveArgumentsAdjustment()
@@ -106,6 +100,10 @@ javafx {
     modules = [ 'javafx.controls', 'javafx.fxml', 'javafx.web', 'javafx.swing' ]
 }
 
+jacoco {
+    toolVersion = "0.8.8"
+}
+
 dependencies {
     // Include all jar-files in the 'lib' folder as dependencies
     implementation fileTree(dir: 'lib', includes: ['*.jar'])
@@ -124,7 +122,7 @@ dependencies {
     implementation group: 'org.apache.commons', name: 'commons-lang3', version: '3.12.0'
     implementation 'com.h2database:h2-mvstore:2.1.212'
 
-    implementation group: 'org.apache.tika', name: 'tika-core', version: '2.3.0'
+    implementation group: 'org.apache.tika', name: 'tika-core', version: '2.4.0'
     implementation 'com.ibm.icu:icu4j-charset:70.1'
 
     // required for reading write-protected PDFs - see https://github.com/JabRef/jabref/pull/942#issuecomment-209252635
@@ -132,7 +130,7 @@ dependencies {
 
     implementation 'commons-cli:commons-cli:1.5.0'
 
-    implementation 'org.libreoffice:libreoffice:7.3.2'
+    implementation 'org.libreoffice:libreoffice:7.3.3'
     implementation 'org.libreoffice:unoloader:7.3.2'
 
     implementation 'io.github.java-diff-utils:java-diff-utils:4.11'
@@ -151,7 +149,7 @@ dependencies {
 
     implementation group: 'org.mariadb.jdbc', name: 'mariadb-java-client', version: '2.7.5'
 
-    implementation 'org.postgresql:postgresql:42.3.3'
+    implementation 'org.postgresql:postgresql:42.3.5'
 
     implementation ('com.oracle.ojdbc:ojdbc10:19.3.0.0') {
         // causing module issues
@@ -191,8 +189,8 @@ dependencies {
     implementation group: 'jakarta.xml.bind', name: 'jakarta.xml.bind-api', version: '3.0.1'
     implementation group: 'org.glassfish.jaxb', name: 'jaxb-runtime', version: '3.0.2'
 
-    implementation ('com.github.tomtung:latex2unicode_2.12:0.2.6') {
-        exclude module: 'fastparse_2.12'
+    implementation ('com.github.tomtung:latex2unicode_2.13:0.3.2') {
+        exclude module: 'fastparse_2.13'
     }
 
     implementation group: 'com.microsoft.azure', name: 'applicationinsights-core', version: '2.4.1'
@@ -251,7 +249,8 @@ processResources {
                 "springerNatureAPIKey": System.getenv('SpringerNatureAPIKey') ? System.getenv('SpringerNatureAPIKey') : '',
                 "astrophysicsDataSystemAPIKey": System.getenv('AstrophysicsDataSystemAPIKey') ? System.getenv('AstrophysicsDataSystemAPIKey') : '',
                 "ieeeAPIKey": System.getenv('IEEEAPIKey') ? System.getenv('IEEEAPIKey') : '',
-                "scienceDirectApiKey": System.getenv('SCIENCEDIRECTAPIKEY') ? System.getenv('SCIENCEDIRECTAPIKEY') : ''
+                "scienceDirectApiKey": System.getenv('SCIENCEDIRECTAPIKEY') ? System.getenv('SCIENCEDIRECTAPIKEY') : '',
+                "biodiversityHeritageApiKey": System.getenv('BiodiversityHeritageApiKey') ? System.getenv('BiodiversityHeritageApiKey') : ''
         )
         filteringCharset = 'UTF-8'
     }
diff --git a/docs/advanced-reading/fetchers.md b/docs/advanced-reading/fetchers.md
index 51981b6f155..b1dc9cb4ca5 100644
--- a/docs/advanced-reading/fetchers.md
+++ b/docs/advanced-reading/fetchers.md
@@ -6,15 +6,15 @@ parent: Advanced Reading
 
 Fetchers are the implementation of the [search using online services](https://docs.jabref.org/collect/import-using-online-bibliographic-database). Some fetchers require API keys to get them working. To get the fetchers running in a JabRef development setup, the keys need to be placed in the respective environment variable. The following table lists the respective fetchers, where to get the key from and the environment variable where the key has to be placed.
 
-| Service                                                                                                                                           | Key Source                                                   | Environment Variable           | Rate Limit                       |
-| ------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------ | ------------------------------ | -------------------------------- |
-| [IEEEXplore](https://docs.jabref.org/collect/import-using-online-bibliographic-database#ieeexplore)                                               | [IEEE Xplore API portal](https://developer.ieee.org)         | `IEEEAPIKey`                   | 200 calls/day                    |
-| [MathSciNet](http://www.ams.org/mathscinet)                                                                                                       | (none)                                                       | (none)                         | Depending on the current network |
-| [SAO/NASA Astrophysics Data System](https://docs.jabref.org/collect/import-using-online-bibliographic-database#sao-nasa-astrophysics-data-system) | [ADS UI](https://ui.adsabs.harvard.edu/user/settings/token)  | `AstrophysicsDataSystemAPIKey` | 5000 calls/day                   |
-| [ScienceDirect](https://www.sciencedirect.com)                                                                                                    |                                                              | `ScienceDirectApiKey`          |                                  |
-| [Springer Nature](https://docs.jabref.org/collect/import-using-online-bibliographic-database#springer)                                            | [Springer Nature API Portal](https://dev.springernature.com) | `SpringerNatureAPIKey`         | 5000 calls/day                   |
-| [Zentralblatt Math](https://www.zbmath.org)                                                                                                       | (none)                                                       | (none)                         | Depending on the current network |
-
+| Service                                                                                                                                              | Key Source                                                                                                     | Environment Variable           | Rate Limit                       |
+|------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------|--------------------------------| -------------------------------- |
+| [IEEEXplore](https://docs.jabref.org/collect/import-using-online-bibliographic-database#ieeexplore)                                                  | [IEEE Xplore API portal](https://developer.ieee.org)                                                           | `IEEEAPIKey`                   | 200 calls/day                    |
+| [MathSciNet](http://www.ams.org/mathscinet)                                                                                                          | (none)                                                                                                         | (none)                         | Depending on the current network |
+| [SAO/NASA Astrophysics Data System](https://docs.jabref.org/collect/import-using-online-bibliographic-database#sao-nasa-astrophysics-data-system)    | [ADS UI](https://ui.adsabs.harvard.edu/user/settings/token)                                                    | `AstrophysicsDataSystemAPIKey` | 5000 calls/day                   |
+| [ScienceDirect](https://www.sciencedirect.com)                                                                                                       |                                                                                                                | `ScienceDirectApiKey`          |                                  |
+| [Springer Nature](https://docs.jabref.org/collect/import-using-online-bibliographic-database#springer)                                               | [Springer Nature API Portal](https://dev.springernature.com)                                                   | `SpringerNatureAPIKey`         | 5000 calls/day                   |
+| [Zentralblatt Math](https://www.zbmath.org)                                                                                                          | (none)                                                                                                         | (none)                         | Depending on the current network |
+ | [Biodiversity Heritage Library](https://www.biodiversitylibrary.org/)                                                                                | [Biodiversitylibrary](https://about.biodiversitylibrary.org/tools-and-services/developer-and-data-tools/#APIs) | `BiodiversityHeritageApiKey`   |         |
 "Depending on the current network" means that it depends on whether your request is routed through a network having paid access. For instance, some universities have subscriptions to MathSciNet.
 
 On Windows, you have to log off and log on to let IntelliJ know about the environment variable change. Execute the gradle task `processResources` in the group "others" within IntelliJ to ensure the values have been correctly written. Now, the fetcher tests should run without issues.
@@ -65,7 +65,7 @@ Code was first introduced at [PR#3882](https://github.com/JabRef/jabref/pull/388
 
 The keys are placed into the `build.properties` file.
 
-```
+```groovy
 springerNatureAPIKey=${springerNatureAPIKey}
 ```
 
diff --git a/docs/getting-into-the-code/guidelines-for-setting-up-a-local-workspace.md b/docs/getting-into-the-code/guidelines-for-setting-up-a-local-workspace.md
index aa8c3410a6c..a6f11b2c4bc 100644
--- a/docs/getting-into-the-code/guidelines-for-setting-up-a-local-workspace.md
+++ b/docs/getting-into-the-code/guidelines-for-setting-up-a-local-workspace.md
@@ -6,11 +6,9 @@ nav_order: 1
 
 This guide explains how to set up your environment for development of JabRef. It includes information about prerequisites, configuring your IDE, and running JabRef locally to verify your setup.
 
-```
-The most important step is to configure your IDE.
-In case you know how to install JDK 17 with JavaFX support and to fork JabRef's code,
-please scroll down to the IDE setup.
-```
+> **The most important step is to configure your IDE.**\
+> **In case you know how to install JDK 18 with JavaFX support and [to fork JabRef's code](#get-the-code),**\
+> **please scroll down to the [IDE setup](#configure-your-ide).**
 
 For a complete step-by-step guide for Linux using IntelliJ IDEA as the IDE, have a look at the following video instructions:
 
@@ -20,13 +18,13 @@ For a complete step-by-step guide for Linux using IntelliJ IDEA as the IDE, have
 
 This section list the prerequisites you need to get started to develop JabRef. After this section, you are ready to get the code.
 
-### Java Development Kit 17
+### Java Development Kit 18
 
-A working Java (Development Kit) 17 installation with Java FX support is required. In the command line (terminal in Linux, cmd in Windows) run `javac -version` and make sure that the reported version is Java 17 (e.g., `javac 17`). If `javac` is not found or a wrong version is reported, check your `PATH` environment variable, your `JAVA_HOME` environment variable or install the most recent JDK.
+A working Java (Development Kit) 18 installation with Java FX support is required. In the command line (terminal in Linux, cmd in Windows) run `javac -version` and make sure that the reported version is Java 18 (e.g., `javac 18`). If `javac` is not found or a wrong version is reported, check your `PATH` environment variable, your `JAVA_HOME` environment variable or install the most recent JDK.
 
 [JavaFX is not part of the default JDK any more](https://www.reddit.com/r/java/comments/82qm9x/javafx\_will\_be\_removed\_from\_the\_java\_jdk\_in\_jdk\_11/), it needs to be installed separately if not using a special JDK.
 
-Download and install the JDK from [https://jdk.java.net/](https://jdk.java.net). Afterwards, download the "jmods" JavaFX 17 zip archive from [https://gluonhq.com/products/javafx/](https://gluonhq.com/products/javafx/) and put the `.jmod` files into `C:\Program Files\OpenJDK\jdk-17\jmods`.
+Download and install the JDK from [https://jdk.java.net/](https://jdk.java.net). Afterwards, download the "jmods" JavaFX 18 zip archive from [https://gluonhq.com/products/javafx/](https://gluonhq.com/products/javafx/) and put the `.jmod` files into `C:\Program Files\OpenJDK\jdk-18\jmods`.
 
 ### GitHub Account
 
@@ -58,7 +56,7 @@ It is strongly recommend that you have git installed.
 
 ### IDE
 
-We suggest [IntelliJ IDEA](https://www.jetbrains.com/idea/?from=jabref). For advanced users, [Eclipse](https://eclipse.org) (`2020-09` or newer) is also possible.
+We suggest [IntelliJ IDEA](https://www.jetbrains.com/idea/?from=jabref). For advanced users, [Eclipse](https://eclipse.org) (`2022-03` or newer) is also possible.
 
 #### IntelliJ
 
@@ -68,7 +66,7 @@ We recommend to install IntelliJ IDEA using [JetBrains Toolbox App](https://www.
 
 On Ubuntu Linux, you can follow the [documentation from the Ubuntu Community](https://help.ubuntu.com/community/EclipseIDE#Download\_Eclipse) or the [step-by-step guideline from Krizna](https://www.krizna.com/ubuntu/install-eclipse-in-ubuntu-12-04/) to install Eclipse. On Windows, download it from [www.eclipse.org](http://www.eclipse.org/downloads/) and run the installer.
 
-Eclipse JEE 2020-12 or newer is required.
+Eclipse JEE 2022-03 or newer is required.
 
 ### Other Tooling
 
@@ -90,13 +88,17 @@ This section explains how you get the JabRef code onto your machine in a form al
 * In a command line, navigate to the folder where you want to place the source code (parent folder of `jabref/`). To prevent issues along the way, it is strongly recommend to choose a path that does not contain any special (non-ASCII or whitespace) characters. Note that placing jabref folder directly in the disk root directory may cause an error.  
 * Run `git clone --depth=10 https://github.com/YOUR_USERNAME/jabref.git`. The `--depth--10` is used to limit the download to \~20 MB instead of downloading the complete history (\~800 MB). If you want to dig in our commit history, feel free to download everything.
 * Go to the newly created jabref folder: `cd jabref`
-* Generate additional source code: `./gradlew assemble`
-* Start JabRef: `./gradlew run`
-  * The JabRef's GUI should now start up.
+
+### Create generate source code
+
+1. Generate additional source code: `./gradlew assemble` (on Windows: `gradlew assemble`)
+2. Source code should now reside in `src-gen`.
+3. Start JabRef: `./gradlew run`
+4. JabRef's GUI should now start up.
 
 ## Configure your IDE
 
-These steps are very important. They allow you to focus on the content and ensure that the code formatting always goes well. Did you know that [IntelliJ allows for reformatting selected code](https://www.jetbrains.com/help/idea/reformat-and-rearrange-code.html#reformat\_code) if you press Ctrl + Alt + L?
+These steps are very important. They allow you to focus on the content and ensure that the code formatting always goes well. Did you know that [IntelliJ allows for reformatting selected code](https://www.jetbrains.com/help/idea/reformat-and-rearrange-code.html#reformat\_code) if you press <kbd>Ctrl</kbd> + <kbd>Alt</kbd> + <kbd>L</kbd>?
 
 ### Configuration of IntelliJ IDEA
 
@@ -104,19 +106,19 @@ IntelliJ IDEA fully supports Gradle as a build tool, but also has an internal bu
 
 To configure IntelliJ IDEA for developing JabRef, you should first ensure that you have enabled both bundled plugins _Gradle_ and _Gradle Extension_:
 
-* Navigate to **File | Settings | Plugins | Installed** and check that you have the _Gradle_ and _Gradle Extension_ enabled.
+* Navigate to **File > Settings > Plugins > Installed** and check that you have the _Gradle_ and _Gradle Extension_ enabled.
 
-After that, you can open `jabref/build.gradle` as a project. It is crucial that Java 17 is used consistently for the JabRef project which includes ensuring the right settings for your project structure, Gradle build, and run configurations.
+After that, you can open `jabref/build.gradle` as a project. It is crucial that Java 18 is used consistently for the JabRef project which includes ensuring the right settings for your project structure, Gradle build, and run configurations.
 
-Ensure you have a Java 17 SDK configured by navigating to **File | Project Structure | Platform Settings | SDKs**. If you don't have one, add a new Java JDK and point it to the location of a JDK 17. ![Project Settings](../images/intellij-choose-jdk-adoptopenjdk-on-windows-project-settings.png)
+Ensure you have a Java 18 SDK configured by navigating to **File > Project Structure > Platform Settings > SDKs**. If you don't have one, add a new Java JDK and point it to the location of a JDK 18. ![Project Settings](../images/intellij-choose-jdk-adoptopenjdk-on-windows-project-settings.png)
 
-Navigate to **File | Project Structure | Project** and ensure that the projects' SDK is Java 17 ![Use JDK 17 as project SDK](../images/intellij-choose-jdk15-project-default.png)
+Navigate to **File > Project Structure > Project** and ensure that the projects' SDK is Java 18 ![Use JDK 18 as project SDK](../images/intellij-choose-jdk15-project-default.png)
 
-Navigate to **File | Settings | Build, Execution, Deployment | Build Tools | Gradle** and select the "Project SDK" as the Gradle JVM at the bottom.
+Navigate to **File > Settings > Build, Execution, Deployment > Build Tools > Gradle** and select the "Project SDK" as the Gradle JVM at the bottom. If that does not exist, just select a JDK 18.
 
 To prepare IntelliJ's build system two additional steps are required:
 
-*   Navigate to **File | Settings | Build, Execution, Deployment | Compiler | Java Compiler**, and under "Override compiler parameters per-module" add (\[+]) the following compiler arguments for the `JabRef.main` module. Otherwise, you will get: `java: package com.sun.javafx.scene.control is not visible (package com.sun.javafx.scene.control is declared in module javafx.controls, which does not export it to module org.jabref)`
+*   Navigate to **File > Settings > Build, Execution, Deployment > Compiler > Java Compiler**, and under "Override compiler parameters per-module" add (\[+]) the following compiler arguments for the `JabRef.main` module. Otherwise, you will get: `java: package com.sun.javafx.scene.control is not visible (package com.sun.javafx.scene.control is declared in module javafx.controls, which does not export it to module org.jabref)`
 
     ```
      --add-exports=javafx.controls/com.sun.javafx.scene.control=org.jabref
@@ -124,32 +126,30 @@ To prepare IntelliJ's build system two additional steps are required:
     ```
 
     Note that you need to focus another UI element before pressing OK. Otherwise, the setting will be empty.
-*   Enable annotation processors by navigating to **File | Settings | Build, Execution, Deployment | Compiler | Annotation processors** and check "Enable annotation processing"
+*   Enable annotation processors by navigating to **File > Settings > Build, Execution, Deployment > Compiler > Annotation processors** and check "Enable annotation processing"
 
-    ![Enable annotation processing](<../images/intellij-enable-annotation-processing.png>)
+    ![Enable annotation processing](../images/intellij-enable-annotation-processing.png)
 
 To have autoformat working properly in the context of line wrapping, "Wrap at right margin" has to be disabled as shown below. Details are found in [IntelliJ issue 240517](https://youtrack.jetbrains.com/issue/IDEA-240517).
 
-![](<../images/intellij-wrap-at-right-margin.png>)
+![](../images/intellij-wrap-at-right-margin.png)
 
 To enable "magic" creation and auto cleanup of imports, enable both "Add unambiguous imports on the fly" and "Optimize imports on the fly":
 
 ![](../images/grafik.png)
 
-Source: [https://www.jetbrains.com/help/idea/creating-and-optimizing-imports.html#automatically-add-import-statements](https://www.jetbrains.com/help/idea/creating-and-optimizing-imports.html#automatically-add-import-statements)
+Source: <https://www.jetbrains.com/help/idea/creating-and-optimizing-imports.html#automatically-add-import-statements>.
 
 #### Using Gradle from within IntelliJ IDEA
 
 Ensuring JabRef builds with Gradle should always the first step because, e.g. it generates additional sources that are required for compiling the code. After adjusting all settings mentioned earlier, your first step should be to
 
-* Open the Gradle Tool Window with the small button that can usually be found on the right side of IDEA or navigate to **View | Tool Windows | Gradle**.
-*   In the Gradle Tool Window, press the "Reload All Gradle Projects" button to ensure that all settings are up-to-date
-
-    with the setting changes.
+* Open the Gradle Tool Window with the small button that can usually be found on the right side of IDEA or navigate to **View > Tool Windows > Gradle**.
+* In the Gradle Tool Window, press the "Reload All Gradle Projects" button to ensure that all settings are up-to-date with the setting changes.
 
 After that, you can use the Gradle Tool Window to build all parts JabRef and run it. To do so, expand the JabRef project in the Gradle Tool Window and navigate to Tasks. From there, you can
 
-* Build and run JabRef by double-clicking **JabRef | Tasks | application | run**.
+* Build and run JabRef by double-clicking **JabRef > Tasks > application > run**.
 
 After that a new entry called "jabref \[run]" will appear in the run configurations. Now you can also select "jabref \[run]" and either run or debug the application from within IntelliJ. You can run any other development task in a similar way. Equivalently, this can also be executed from the terminal by running `./gradlew run`.
 
@@ -157,9 +157,9 @@ After that a new entry called "jabref \[run]" will appear in the run configurati
 
 You should use IntelliJ IDEA's internal build system for compiling and running JabRef during development, because it is usually more responsive. Thereby, **it is important** that you understand that JabRef relies on generated sources which are only build through Gradle. Therefore, to build or update these dependencies you need to run the `assemble` Gradle task at least once.
 
-To use IntelliJ IDEA's internal build system when you build JabRef through **Build | Build Project** or use the provided "JabRef Main" run configuration, ensure that
+To use IntelliJ IDEA's internal build system when you build JabRef through **Build > Build Project** or use the provided "JabRef Main" run configuration, ensure that
 
-* In **File | Settings | Build, Execution, Deployment | Build Tools | Gradle** the setting "Build and run using" and "Test using" is set to "IntelliJ IDEA".
+* In **File > Settings > Build, Execution, Deployment > Build Tools > Gradle** the setting "Build and run using" and "Test using" is set to "IntelliJ IDEA".
 *   Ignore the Gradle project "buildSrc" by clicking the button **Select Project Data To Import** in the Gradle Tool Window and unchecking the folder "buildSrc".
 
     ![Ignore the Gradle project "buildSrc"](<../images/intellij-gradle-config-ignore-buildSrc.png>)
@@ -186,21 +186,21 @@ In case all steps are followed, and there are still issues with `SearchBaseVisit
 Contributions to JabRef's source code need to have a code formatting that is consistent with existing source code. For that purpose, JabRef provides code-style and check-style definitions.
 
 * Install the [CheckStyle-IDEA plugin](http://plugins.jetbrains.com/plugin/1065?pr=idea), it can be found via the plug-in repository:
-  1. Navigate to **File | Settings | Plugins | Marketplace** and search for "Checkstyle" and choose "CheckStyle-IDEA"
+  1. Navigate to **File > Settings > Plugins > Marketplace** and search for "Checkstyle" and choose "CheckStyle-IDEA"
   2. Close the settings afterwards and restart IntelliJ
-* Go to **File | Settings | Editor | Code Style**
+* Go to **File > Settings > Editor > Code Style**
 * Click on the settings wheel (next to the scheme chooser), then click "Import Scheme"
 * Select the IntelliJ configuration file `config/IntelliJ Code Style.xml`
 
 Finally, ensure that the checkstyle configuration file is in place:
 
-1. Go to **File | Settings | Tools | Checkstyle | Configuration File**
+1. Go to **File > Settings > Tools > Checkstyle > Configuration File**
 2. Import the CheckStyle configuration file by clicking the \[+] button
 3. For the description provide "JabRef"
 4. Click "Browse" and choose `config/checkstyle/checkstyle.xml`
 5. Click "Next" and "Finish"
 6. Activate the CheckStyle configuration file by ticking it in the list
-7. Ensure that the [latest CheckStyle version](https://checkstyle.org/releasenotes.html) is selected (8.36 or higher). 9.21 is required for Java 17.
+7. Ensure that the [latest CheckStyle version](https://checkstyle.org/releasenotes.html) is selected (8.36 or higher). 9.3 is required for Java 18.
 8. Set the "Scan Scope" to "Only Java sources (including tests)
 9. Save settings by clicking "OK"
 10. Your configuration should now look like this:
@@ -226,9 +226,6 @@ Make sure your Eclipse installation us up to date.
    *   In the tab "Arguments" of the run/debug configuration, enter the following runtime VM arguments:
 
        ```
-          --patch-module test=fastparse_2.12-1.0.0.jar
-          --patch-module test2=fastparse-utils_2.12-1.0.0.jar
-          --patch-module test3=sourcecode_2.12-0.1.4.jar
           --add-exports javafx.controls/com.sun.javafx.scene.control=org.jabref
           --add-exports org.controlsfx.controls/impl.org.controlsfx.skin=org.jabref
           --add-exports javafx.graphics/com.sun.javafx.scene=org.controlsfx.controls
@@ -284,7 +281,7 @@ Got it running? GREAT! You are ready to lurk the code and contribute to JabRef.
 
 ### Java installation
 
-An indication that `JAVA_HOME` is not correctly set or no JDK 17 is installed is following error message:
+An indication that `JAVA_HOME` is not correctly set or no JDK 18 is installed is following error message:
 
 ```
 compileJava FAILED
@@ -335,9 +332,9 @@ This can include different modules.
 There might be problems with building if you have openjfx libraries in local maven repository, resulting in errors like this:
 
 ```
- > Could not find javafx-fxml-17-mac.jar (org.openjfx:javafx-fxml:17).
+ > Could not find javafx-fxml-18-mac.jar (org.openjfx:javafx-fxml:18).
      Searched in the following locations:
-         file:<your local maven repository path>/repository/org/openjfx/javafx-fxml/17/javafx-fxml-17-mac.jar
+         file:<your local maven repository path>/repository/org/openjfx/javafx-fxml/18/javafx-fxml-18-mac.jar
 ```
 
 As a workaround, you can remove all local openjfx artifacts by deleting the whole openjfx folder from specified location.
diff --git a/docs/readings-on-coding/tools.md b/docs/readings-on-coding/tools.md
index 68a42dbc692..d2a378c52b7 100644
--- a/docs/readings-on-coding/tools.md
+++ b/docs/readings-on-coding/tools.md
@@ -41,7 +41,7 @@ See also: [https://help.github.com/articles/syncing-a-fork/](https://help.github
 2. `choco install git`
 3. `choco install conemu clink`
 4. `choco install notepadplusplus`
-5. If you want to have your jdk also managed via chocolatey: `choco install jdk8`
+5. If you want to have your jdk also managed via chocolatey: `choco install temurin`
 
 Then, each weak do `choco upgrade all` to ensure all tooling is uptodate.
 
diff --git a/lib/fastparse-1.0.0.jar b/lib/fastparse-1.0.0.jar
deleted file mode 100644
index 7c38dac21c6..00000000000
Binary files a/lib/fastparse-1.0.0.jar and /dev/null differ
diff --git a/lib/fastparse-2.3.3.jar b/lib/fastparse-2.3.3.jar
new file mode 100644
index 00000000000..2bcb25233f8
Binary files /dev/null and b/lib/fastparse-2.3.3.jar differ
diff --git a/lib/fastparse-utils-1.0.0.jar b/lib/fastparse-utils-1.0.0.jar
deleted file mode 100644
index 58d520f52fb..00000000000
Binary files a/lib/fastparse-utils-1.0.0.jar and /dev/null differ
diff --git a/lib/geny-0.6.10.jar b/lib/geny-0.6.10.jar
new file mode 100644
index 00000000000..02846e358ae
Binary files /dev/null and b/lib/geny-0.6.10.jar differ
diff --git a/lib/sourcecode-0.1.4.jar b/lib/sourcecode-0.1.4.jar
deleted file mode 100644
index 2aa74d89a0d..00000000000
Binary files a/lib/sourcecode-0.1.4.jar and /dev/null differ
diff --git a/lib/sourcecode-0.2.3.jar b/lib/sourcecode-0.2.3.jar
new file mode 100644
index 00000000000..a0a649fca58
Binary files /dev/null and b/lib/sourcecode-0.2.3.jar differ
diff --git a/src/main/java/org/jabref/gui/Base.css b/src/main/java/org/jabref/gui/Base.css
index 70d13eef93b..3a25f9afc25 100644
--- a/src/main/java/org/jabref/gui/Base.css
+++ b/src/main/java/org/jabref/gui/Base.css
@@ -413,7 +413,7 @@ TextFlow > .tooltip-text-monospaced {
 }
 
 .progress-indicatorToolbar .percentage {
-    -fx-fill:null;
+    -fx-fill: null;
 }
 
 .check-box {
@@ -650,11 +650,11 @@ TextFlow > .tooltip-text-monospaced {
     -fx-background-color: -jr-warn;
 }
 
-.file-row-text{
+.file-row-text {
     -fx-fill: -jr-search-text;
 }
 
-.file-row-text:opacity{
+.file-row-text:opacity {
     -fx-fill: derive(-jr-search-text, 70%);
 }
 
@@ -706,9 +706,9 @@ TextFlow > .tooltip-text-monospaced {
     -fx-padding: 0;
 }
 
-.accordion .titled-pane  {
-   -fx-skin: "org.jabref.gui.util.CustomTitledPaneSkin";
-   -fx-arrow-side: right;
+.accordion .titled-pane {
+    -fx-skin: "org.jabref.gui.util.CustomTitledPaneSkin";
+    -fx-arrow-side: right;
 }
 
 .accordion .titled-pane .title {
@@ -1100,15 +1100,40 @@ We want to have a look that matches our icons in the tool-bar */
     -fx-background-color: -jr-sidepane-background;
 }
 
-.jfx-snackbar-content {
+.notification-bar > .pane {
     -fx-background-color: -jr-gray-3;
     -fx-background-radius: 4px;
-    -fx-padding: 0ex 0ex 0ex 0ex;
 }
 
-.jfx-snackbar-toast {
-    -fx-text-fill: -fx-light-text-color;
-    -fx-padding: -1ex -0.5ex -1ex -0.5ex;
+.notification-bar > .pane > .title,
+.notification-bar > .pane > .label,
+.notification-bar > .pane > .button-bar > .container > .action {
+    -fx-text-fill: -jr-base;
+    -fx-padding: 1ex 1ex 1ex 1ex;
+}
+
+.notification-bar > .pane {
+    -fx-effect: dropshadow(three-pass-box, rgba(0, 0, 0, 0.3), 9, 0, 0, 2);
+    -fx-padding: 6px 7px 6px 32px;
+    -fx-background-radius: 0px;
+    -fx-border-radius: 0px;
+}
+
+.notification-bar > .pane > .button-bar > .container {
+    -fx-padding: 0px 24px 0px 0px;
+}
+
+.notification-bar > .pane > .label {
+    -fx-graphic-text-gap: 8px;
+}
+
+.notification-pane .notification-bar > .pane .close-button > .graphic {
+    -fx-background-color: -jr-base;
+}
+
+.notification-bar > .pane > .label > .ikonli-font-icon {
+    -fx-icon-size: 16px;
+    -fx-icon-color: -jr-base;
 }
 
 .progress-bar > .bar {
@@ -1270,14 +1295,10 @@ TextFlow * {
     -fx-fill: -fx-mid-text-color;
 }
 
-.fontsizeSpinner{
+.fontsizeSpinner {
     -fx-pref-width: 5em;
 }
 
 .text-field:invalid {
     -fx-background-color: rgba(240, 128, 128, 0.5);
 }
-
-.notification-pane .notification-bar > .pane .label {
-    -fx-text-fill: -fx-mid-text-color;
-}
diff --git a/src/main/java/org/jabref/gui/Dark.css b/src/main/java/org/jabref/gui/Dark.css
index ecc993453dc..e1de8084646 100644
--- a/src/main/java/org/jabref/gui/Dark.css
+++ b/src/main/java/org/jabref/gui/Dark.css
@@ -125,3 +125,7 @@
     -fx-text-fill: derive(-fx-light-text-color, 80%);
     -fx-icon-color: derive(-fx-light-text-color, 80%);
 }
+
+.notification-bar > .pane {
+    -fx-background-color: -fx-light-text-color;
+}
diff --git a/src/main/java/org/jabref/gui/JabRefDialogService.java b/src/main/java/org/jabref/gui/JabRefDialogService.java
index aab7d52360f..7fb240358a7 100644
--- a/src/main/java/org/jabref/gui/JabRefDialogService.java
+++ b/src/main/java/org/jabref/gui/JabRefDialogService.java
@@ -13,6 +13,7 @@
 import java.util.stream.Collectors;
 
 import javafx.concurrent.Task;
+import javafx.geometry.Pos;
 import javafx.print.PrinterJob;
 import javafx.scene.Group;
 import javafx.scene.Node;
@@ -38,15 +39,14 @@
 import org.jabref.gui.theme.ThemeManager;
 import org.jabref.gui.util.BackgroundTask;
 import org.jabref.gui.util.BaseDialog;
+import org.jabref.gui.util.DefaultTaskExecutor;
 import org.jabref.gui.util.DirectoryDialogConfiguration;
 import org.jabref.gui.util.FileDialogConfiguration;
 import org.jabref.gui.util.ZipFileChooser;
 import org.jabref.logic.l10n.Localization;
 
-import com.jfoenix.controls.JFXSnackbar;
-import com.jfoenix.controls.JFXSnackbar.SnackbarEvent;
-import com.jfoenix.controls.JFXSnackbarLayout;
 import com.tobiasdiez.easybind.EasyBind;
+import org.controlsfx.control.Notifications;
 import org.controlsfx.control.TaskProgressView;
 import org.controlsfx.dialog.ExceptionDialog;
 import org.controlsfx.dialog.ProgressDialog;
@@ -70,13 +70,11 @@ public class JabRefDialogService implements DialogService {
     private static final Logger LOGGER = LoggerFactory.getLogger(JabRefDialogService.class);
 
     private final Window mainWindow;
-    private final JFXSnackbar statusLine;
     private final ThemeManager themeManager;
 
     public JabRefDialogService(Window mainWindow, Pane mainPane, ThemeManager themeManager) {
         this.mainWindow = mainWindow;
         this.themeManager = themeManager;
-        this.statusLine = new JFXSnackbar(mainPane);
     }
 
     private FXDialog createDialog(AlertType type, String title, String content) {
@@ -335,7 +333,15 @@ public <V> Optional<ButtonType> showBackgroundProgressDialogAndWait(String title
     @Override
     public void notify(String message) {
         LOGGER.info(message);
-        statusLine.fireEvent(new SnackbarEvent(new JFXSnackbarLayout(message), TOAST_MESSAGE_DISPLAY_TIME, null));
+
+        DefaultTaskExecutor.runInJavaFXThread(() -> {
+            Notifications.create()
+            .text(message)
+            .position(Pos.BOTTOM_CENTER)
+            .hideAfter(TOAST_MESSAGE_DISPLAY_TIME)
+            .hideCloseButton()
+            .show();
+        });
     }
 
     @Override
diff --git a/src/main/java/org/jabref/gui/entryeditor/DeprecatedFieldsTab.java b/src/main/java/org/jabref/gui/entryeditor/DeprecatedFieldsTab.java
index d7bf6afab51..7127c0af919 100644
--- a/src/main/java/org/jabref/gui/entryeditor/DeprecatedFieldsTab.java
+++ b/src/main/java/org/jabref/gui/entryeditor/DeprecatedFieldsTab.java
@@ -3,6 +3,7 @@
 import java.util.Collections;
 import java.util.Optional;
 import java.util.Set;
+import java.util.stream.Collectors;
 
 import javax.swing.undo.UndoManager;
 
@@ -53,7 +54,7 @@ public DeprecatedFieldsTab(BibDatabaseContext databaseContext,
     protected Set<Field> determineFieldsToShow(BibEntry entry) {
         Optional<BibEntryType> entryType = entryTypesManager.enrich(entry.getType(), databaseContext.getMode());
         if (entryType.isPresent()) {
-            return entryType.get().getDeprecatedFields();
+            return entryType.get().getDeprecatedFields().stream().filter(field -> !entry.getField(field).isEmpty()).collect(Collectors.toSet());
         } else {
             // Entry type unknown -> treat all fields as required
             return Collections.emptySet();
diff --git a/src/main/java/org/jabref/gui/exporter/ExportCommand.java b/src/main/java/org/jabref/gui/exporter/ExportCommand.java
index 85c22360ef6..78198252c98 100644
--- a/src/main/java/org/jabref/gui/exporter/ExportCommand.java
+++ b/src/main/java/org/jabref/gui/exporter/ExportCommand.java
@@ -136,8 +136,8 @@ private void export(Path file, FileChooser.ExtensionFilter selectedExtensionFilt
                     LibraryTab.DatabaseNotification notificationPane = frame.getCurrentLibraryTab().getNotificationPane();
                     notificationPane.notify(
                             IconTheme.JabRefIcons.FOLDER.getGraphicNode(),
-                            Localization.lang("%0 export successful. Open the folder containing the saved file?", format.getName()),
-                            List.of(new Action(Localization.lang("Open"), event -> {
+                            Localization.lang("Export operation finished successfully."),
+                            List.of(new Action(Localization.lang("Reveal in File Explorer"), event -> {
                                 try {
                                     JabRefDesktop.openFolderAndSelectFile(file, preferences);
                                 } catch (IOException e) {
diff --git a/src/main/java/org/jabref/gui/groups/GroupTreeView.java b/src/main/java/org/jabref/gui/groups/GroupTreeView.java
index 7e5bc906646..ec83eb33bfe 100644
--- a/src/main/java/org/jabref/gui/groups/GroupTreeView.java
+++ b/src/main/java/org/jabref/gui/groups/GroupTreeView.java
@@ -112,15 +112,19 @@ private void createNodes() {
 
         mainColumn = new TreeTableColumn<>();
         mainColumn.setId("mainColumn");
+        mainColumn.setResizable(true);
         numberColumn = new TreeTableColumn<>();
         numberColumn.getStyleClass().add("numberColumn");
-        numberColumn.setMinWidth(50d);
-        numberColumn.setMaxWidth(70d);
-        numberColumn.setPrefWidth(60d);
+        numberColumn.setMinWidth(40d);
+        numberColumn.setMaxWidth(40d);
+        numberColumn.setPrefWidth(40d);
+        numberColumn.setResizable(false);
         expansionNodeColumn = new TreeTableColumn<>();
         expansionNodeColumn.getStyleClass().add("expansionNodeColumn");
-        expansionNodeColumn.setMaxWidth(25d);
-        expansionNodeColumn.setMinWidth(25d);
+        expansionNodeColumn.setMaxWidth(20d);
+        expansionNodeColumn.setMinWidth(20d);
+        expansionNodeColumn.setPrefWidth(20d);
+        expansionNodeColumn.setResizable(false);
 
         groupTree = new TreeTableView<>();
         groupTree.setId("groupTree");
@@ -128,6 +132,8 @@ private void createNodes() {
         groupTree.getColumns().addAll(List.of(mainColumn, numberColumn, expansionNodeColumn));
         this.setCenter(groupTree);
 
+        mainColumn.prefWidthProperty().bind(groupTree.widthProperty().subtract(60d).subtract(15));
+
         addNewGroup = new Button(Localization.lang("Add group"));
         addNewGroup.setId("addNewGroup");
         addNewGroup.setMaxWidth(Double.MAX_VALUE);
diff --git a/src/main/java/org/jabref/logic/importer/WebFetchers.java b/src/main/java/org/jabref/logic/importer/WebFetchers.java
index bd335f38ba7..783e0bcb335 100644
--- a/src/main/java/org/jabref/logic/importer/WebFetchers.java
+++ b/src/main/java/org/jabref/logic/importer/WebFetchers.java
@@ -12,6 +12,7 @@
 import org.jabref.logic.importer.fetcher.ApsFetcher;
 import org.jabref.logic.importer.fetcher.ArXiv;
 import org.jabref.logic.importer.fetcher.AstrophysicsDataSystem;
+import org.jabref.logic.importer.fetcher.BiodiversityLibrary;
 import org.jabref.logic.importer.fetcher.CiteSeer;
 import org.jabref.logic.importer.fetcher.CollectionOfComputerScienceBibliographiesFetcher;
 import org.jabref.logic.importer.fetcher.CompositeSearchBasedFetcher;
@@ -114,6 +115,7 @@ public static SortedSet<SearchBasedFetcher> getSearchBasedFetchers(ImportFormatP
         // set.add(new JstorFetcher(importFormatPreferences));
         set.add(new SemanticScholar());
         set.add(new ResearchGate(importFormatPreferences));
+        set.add(new BiodiversityLibrary(importerPreferences));
       return set;
     }
 
@@ -203,6 +205,7 @@ public static Set<CustomizableKeyFetcher> getCustomizableKeyFetchers(ImportForma
         fetchers.add(new SpringerFetcher(importerPreferences));
         fetchers.add(new ScienceDirect(importerPreferences));
         fetchers.add(new AstrophysicsDataSystem(importFormatPreferences, importerPreferences));
+        fetchers.add(new BiodiversityLibrary(importerPreferences));
         return fetchers;
     }
 }
diff --git a/src/main/java/org/jabref/logic/importer/fetcher/BiodiversityLibrary.java b/src/main/java/org/jabref/logic/importer/fetcher/BiodiversityLibrary.java
new file mode 100644
index 00000000000..7a75a38675e
--- /dev/null
+++ b/src/main/java/org/jabref/logic/importer/fetcher/BiodiversityLibrary.java
@@ -0,0 +1,223 @@
+package org.jabref.logic.importer.fetcher;
+
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.IntStream;
+
+import org.jabref.logic.importer.FetcherException;
+import org.jabref.logic.importer.ImporterPreferences;
+import org.jabref.logic.importer.ParseException;
+import org.jabref.logic.importer.Parser;
+import org.jabref.logic.importer.SearchBasedParserFetcher;
+import org.jabref.logic.importer.fetcher.transformers.BiodiversityLibraryTransformer;
+import org.jabref.logic.importer.util.JsonReader;
+import org.jabref.logic.net.URLDownload;
+import org.jabref.logic.preferences.FetcherApiKey;
+import org.jabref.logic.util.BuildInfo;
+import org.jabref.model.entry.Author;
+import org.jabref.model.entry.AuthorList;
+import org.jabref.model.entry.BibEntry;
+import org.jabref.model.entry.field.StandardField;
+import org.jabref.model.entry.types.StandardEntryType;
+
+import kong.unirest.json.JSONArray;
+import kong.unirest.json.JSONException;
+import kong.unirest.json.JSONObject;
+import org.apache.http.client.utils.URIBuilder;
+import org.apache.lucene.queryparser.flexible.core.nodes.QueryNode;
+import org.tinylog.Logger;
+
+/**
+ * Fetches data from the Biodiversity Heritage Library
+ *
+ * @implNote
+ * <a href="https://www.biodiversitylibrary.org/docs/api3.html">API documentation</a>
+ */
+public class BiodiversityLibrary implements SearchBasedParserFetcher, CustomizableKeyFetcher {
+
+    private static final String API_KEY = new BuildInfo().biodiversityHeritageApiKey;
+    private static final String BASE_URL = "https://www.biodiversitylibrary.org/api3";
+    private static final String RESPONSE_FORMAT = "json";
+    private static final String TEST_URL_WITHOUT_API_KEY = "https://www.biodiversitylibrary.org/api3?apikey=";
+
+    private static final String FETCHER_NAME = "Biodiversity Heritage";
+
+    private final ImporterPreferences importerPreferences;
+
+    public BiodiversityLibrary(ImporterPreferences importerPreferences) {
+        this.importerPreferences = importerPreferences;
+    }
+
+    @Override
+    public String getName() {
+        return FETCHER_NAME;
+    }
+
+    @Override
+    public String getTestUrl() {
+        return TEST_URL_WITHOUT_API_KEY;
+    }
+
+    public URL getBaseURL() throws URISyntaxException, MalformedURLException {
+        URIBuilder baseURI = new URIBuilder(BASE_URL);
+        baseURI.addParameter("apikey", getApiKey());
+        baseURI.addParameter("format", RESPONSE_FORMAT);
+
+        return baseURI.build().toURL();
+    }
+
+    public URL getItemMetadataURL(String identifier) throws URISyntaxException, MalformedURLException {
+        URIBuilder uriBuilder = new URIBuilder(getBaseURL().toURI());
+        uriBuilder.addParameter("op", "GetItemMetadata");
+        uriBuilder.addParameter("pages", "f");
+        uriBuilder.addParameter("ocr", "f");
+        uriBuilder.addParameter("ocr", "f");
+        uriBuilder.addParameter("id", identifier);
+
+        return uriBuilder.build().toURL();
+    }
+
+    public URL getPartMetadataURL(String identifier) throws URISyntaxException, MalformedURLException {
+        URIBuilder uriBuilder = new URIBuilder(getBaseURL().toURI());
+        uriBuilder.addParameter("op", "GetPartMetadata");
+        uriBuilder.addParameter("pages", "f");
+        uriBuilder.addParameter("names", "f");
+        uriBuilder.addParameter("id", identifier);
+
+        return uriBuilder.build().toURL();
+    }
+
+    public JSONObject getDetails(URL url) throws IOException {
+        URLDownload download = new URLDownload(url);
+        String response = download.asString();
+        Logger.debug("Response {}", response);
+        return new JSONObject(response).getJSONArray("Result").getJSONObject(0);
+    }
+
+    public BibEntry parseBibJSONtoBibtex(JSONObject item, BibEntry entry) throws IOException, URISyntaxException {
+        if (item.has("BHLType")) {
+            if (item.getString("BHLType").equals("Part")) {
+                URL url = getPartMetadataURL(item.getString("PartID"));
+                JSONObject itemsDetails = getDetails(url);
+                entry.setField(StandardField.LANGUAGE, itemsDetails.optString("Language", ""));
+
+                entry.setField(StandardField.DOI, itemsDetails.optString("Doi", ""));
+
+                entry.setField(StandardField.PUBLISHER, itemsDetails.optString("PublisherName", ""));
+                entry.setField(StandardField.DATE, itemsDetails.optString("Date", ""));
+                entry.setField(StandardField.VOLUME, itemsDetails.optString("Volume", ""));
+                entry.setField(StandardField.URL, itemsDetails.optString("PartUrl", ""));
+            }
+
+            if (item.getString("BHLType").equals("Item")) {
+                URL url = getItemMetadataURL(item.getString("ItemID"));
+                JSONObject itemsDetails = getDetails(url);
+                entry.setField(StandardField.EDITOR, itemsDetails.optString("Sponsor", ""));
+                entry.setField(StandardField.PUBLISHER, itemsDetails.optString("HoldingInstitution", ""));
+                entry.setField(StandardField.LANGUAGE, itemsDetails.optString("Language", ""));
+                entry.setField(StandardField.URL, itemsDetails.optString("ItemUrl", ""));
+                if (itemsDetails.has("Date") && !entry.hasField(StandardField.DATE) && !entry.hasField(StandardField.YEAR)) {
+                    entry.setField(StandardField.DATE, itemsDetails.getString("Date"));
+                }
+            }
+        }
+
+        return entry;
+    }
+
+    public BibEntry jsonResultToBibEntry(JSONObject item) {
+        BibEntry entry = new BibEntry();
+
+        if ("Book".equals(item.optString("Genre"))) {
+            entry.setType(StandardEntryType.Book);
+        } else {
+            entry.setType(StandardEntryType.Article);
+        }
+        entry.setField(StandardField.TITLE, item.optString("Title", ""));
+
+        entry.setField(StandardField.AUTHOR, toAuthors(item.optJSONArray("Authors")));
+
+        entry.setField(StandardField.PAGES, item.optString("PageRange", ""));
+        entry.setField(StandardField.LOCATION, item.optString("PublisherPlace", ""));
+        entry.setField(StandardField.PUBLISHER, item.optString("PublisherName", ""));
+
+        entry.setField(StandardField.DATE, item.optString("Date", ""));
+        entry.setField(StandardField.YEAR, item.optString("PublicationDate", ""));
+        entry.setField(StandardField.JOURNALTITLE, item.optString("ContainerTitle", ""));
+        entry.setField(StandardField.VOLUME, item.optString("Volume", ""));
+
+        return entry;
+    }
+
+    private String toAuthors(JSONArray authors) {
+        if (authors == null) {
+            return "";
+        }
+
+        // input: list of { "Name": "Author name,"}
+        return IntStream.range(0, authors.length())
+                        .mapToObj(authors::getJSONObject)
+                        .map((author) -> new Author(
+                                author.optString("Name", ""), "", "", "", ""))
+                        .collect(AuthorList.collect())
+                        .getAsFirstLastNamesWithAnd();
+    }
+
+    @Override
+    public Parser getParser() {
+        return inputStream -> {
+            JSONObject response = JsonReader.toJsonObject(inputStream);
+            if (response.isEmpty()) {
+                return Collections.emptyList();
+            }
+
+            String errorMessage = response.getString("ErrorMessage");
+            if (!errorMessage.isBlank()) {
+                return Collections.emptyList();
+            }
+
+            JSONArray items = response.getJSONArray("Result");
+            List<BibEntry> entries = new ArrayList<>(items.length());
+            for (int i = 0; i < items.length(); i++) {
+                JSONObject item = items.getJSONObject(i);
+                BibEntry entry = jsonResultToBibEntry(item);
+                try {
+                    entry = parseBibJSONtoBibtex(item, entry);
+                } catch (
+                        JSONException |
+                        IOException |
+                        URISyntaxException exception) {
+                    throw new ParseException("Error when parsing entry", exception);
+                }
+                entries.add(entry);
+            }
+
+            return entries;
+        };
+    }
+
+    @Override
+    public URL getURLForQuery(QueryNode luceneQuery) throws URISyntaxException, MalformedURLException, FetcherException {
+        URIBuilder uriBuilder = new URIBuilder(getBaseURL().toURI());
+        BiodiversityLibraryTransformer transformer = new BiodiversityLibraryTransformer();
+        uriBuilder.addParameter("op", "PublicationSearch");
+        uriBuilder.addParameter("searchtype", "C");
+        uriBuilder.addParameter("searchterm", transformer.transformLuceneQuery(luceneQuery).orElse(""));
+        return uriBuilder.build().toURL();
+    }
+
+    private String getApiKey() {
+        return importerPreferences.getApiKeys()
+                                  .stream()
+                                  .filter(key -> key.getName().equalsIgnoreCase(this.getName()))
+                                  .filter(FetcherApiKey::shouldUse)
+                                  .findFirst()
+                                  .map(FetcherApiKey::getKey)
+                                  .orElse(API_KEY);
+    }
+}
diff --git a/src/main/java/org/jabref/logic/importer/fetcher/transformers/BiodiversityLibraryTransformer.java b/src/main/java/org/jabref/logic/importer/fetcher/transformers/BiodiversityLibraryTransformer.java
new file mode 100644
index 00000000000..431f545d576
--- /dev/null
+++ b/src/main/java/org/jabref/logic/importer/fetcher/transformers/BiodiversityLibraryTransformer.java
@@ -0,0 +1,39 @@
+package org.jabref.logic.importer.fetcher.transformers;
+
+public class BiodiversityLibraryTransformer extends AbstractQueryTransformer {
+
+    @Override
+    protected String getLogicalAndOperator() {
+        return "+";
+    }
+
+    @Override
+    protected String getLogicalOrOperator() {
+        return "+";
+    }
+
+    @Override
+    protected String getLogicalNotOperator() {
+        return "+";
+    }
+
+    @Override
+    protected String handleAuthor(String author) {
+        return author;
+    }
+
+    @Override
+    protected String handleTitle(String title) {
+        return title;
+    }
+
+    @Override
+    protected String handleJournal(String journalTitle) {
+        return journalTitle;
+    }
+
+    @Override
+    protected String handleYear(String year) {
+        return year;
+    }
+}
diff --git a/src/main/java/org/jabref/logic/util/BuildInfo.java b/src/main/java/org/jabref/logic/util/BuildInfo.java
index 47ef962f21a..7a1cf33b9af 100644
--- a/src/main/java/org/jabref/logic/util/BuildInfo.java
+++ b/src/main/java/org/jabref/logic/util/BuildInfo.java
@@ -29,6 +29,7 @@ public final class BuildInfo {
     public final String scienceDirectApiKey;
     public final String minRequiredJavaVersion;
     public final boolean allowJava9;
+    public final String biodiversityHeritageApiKey;
 
     public BuildInfo() {
         this("/build.properties");
@@ -57,6 +58,7 @@ public BuildInfo(String path) {
         scienceDirectApiKey = BuildInfo.getValue(properties, "scienceDirectApiKey", "fb82f2e692b3c72dafe5f4f1fa0ac00b");
         minRequiredJavaVersion = properties.getProperty("minRequiredJavaVersion", "1.8");
         allowJava9 = "true".equals(properties.getProperty("allowJava9", "true"));
+        biodiversityHeritageApiKey = BuildInfo.getValue(properties, "biodiversityHeritageApiKey", "36b910b6-2eb3-46f2-b64c-9abc149925ba");
     }
 
     private static String getValue(Properties properties, String key, String defaultValue) {
diff --git a/src/main/java/org/jabref/model/strings/LatexToUnicodeAdapter.java b/src/main/java/org/jabref/model/strings/LatexToUnicodeAdapter.java
index c8bfb0a3a6b..01c4c304ef2 100644
--- a/src/main/java/org/jabref/model/strings/LatexToUnicodeAdapter.java
+++ b/src/main/java/org/jabref/model/strings/LatexToUnicodeAdapter.java
@@ -6,7 +6,7 @@
 import java.util.regex.Pattern;
 
 import com.github.tomtung.latex2unicode.LaTeX2Unicode;
-import fastparse.core.Parsed;
+import fastparse.Parsed;
 
 /**
  * Adapter class for the latex2unicode lib. This is an alternative to our LatexToUnicode class
diff --git a/src/main/java/org/jabref/preferences/JabRefPreferences.java b/src/main/java/org/jabref/preferences/JabRefPreferences.java
index f271ecccae2..efbe39e12c9 100644
--- a/src/main/java/org/jabref/preferences/JabRefPreferences.java
+++ b/src/main/java/org/jabref/preferences/JabRefPreferences.java
@@ -629,8 +629,8 @@ private JabRefPreferences() {
 
         defaults.put(SPECIALFIELDSENABLED, Boolean.TRUE);
 
-        defaults.put(FETCHER_CUSTOM_KEY_NAMES, "Springer;IEEEXplore;SAO/NASA ADS;ScienceDirect");
-        defaults.put(FETCHER_CUSTOM_KEY_USES, "FALSE;FALSE;FALSE;FALSE");
+        defaults.put(FETCHER_CUSTOM_KEY_NAMES, "Springer;IEEEXplore;SAO/NASA ADS;ScienceDirect;Biodiversity Heritage");
+        defaults.put(FETCHER_CUSTOM_KEY_USES, "FALSE;FALSE;FALSE;FALSE;FALSE");
         defaults.put(FETCHER_CUSTOM_KEYS, "");
 
         defaults.put(USE_OWNER, Boolean.FALSE);
diff --git a/src/main/resources/build.properties b/src/main/resources/build.properties
index ec86a4cab54..efe52c53aad 100644
--- a/src/main/resources/build.properties
+++ b/src/main/resources/build.properties
@@ -5,3 +5,4 @@ azureInstrumentationKey=${azureInstrumentationKey}
 springerNatureAPIKey=${springerNatureAPIKey}
 astrophysicsDataSystemAPIKey=${astrophysicsDataSystemAPIKey}
 ieeeAPIKey=${ieeeAPIKey}
+biodiversityHeritageApiKey=${biodiversityHeritageApiKey}
diff --git a/src/main/resources/l10n/JabRef_en.properties b/src/main/resources/l10n/JabRef_en.properties
index e1aa756a5ae..4f9e9e4df15 100644
--- a/src/main/resources/l10n/JabRef_en.properties
+++ b/src/main/resources/l10n/JabRef_en.properties
@@ -19,7 +19,9 @@ Unable\ to\ monitor\ file\ changes.\ Please\ close\ files\ and\ processes\ and\
 
 %0/%1\ entries=%0/%1 entries
 
-%0\ export\ successful.\ Open\ the\ folder\ containing\ the\ saved\ file?=%0 export successful. Open the folder containing the saved file?
+Export\ operation\ finished\ successfully.=Export operation finished successfully.
+
+Reveal\ in\ File\ Explorer=Reveal in File Explorer
 
 %0\ matches\ the\ regular\ expression\ <b>%1</b>=%0 matches the regular expression <b>%1</b>
 
diff --git a/src/test/java/org/jabref/logic/importer/fetcher/BiodiversityLibraryTest.java b/src/test/java/org/jabref/logic/importer/fetcher/BiodiversityLibraryTest.java
new file mode 100644
index 00000000000..e1ee85d8fc8
--- /dev/null
+++ b/src/test/java/org/jabref/logic/importer/fetcher/BiodiversityLibraryTest.java
@@ -0,0 +1,178 @@
+package org.jabref.logic.importer.fetcher;
+
+import java.net.MalformedURLException;
+import java.net.URISyntaxException;
+import java.util.List;
+
+import javafx.collections.FXCollections;
+
+import org.jabref.logic.importer.FetcherException;
+import org.jabref.logic.importer.ImporterPreferences;
+import org.jabref.logic.util.BuildInfo;
+import org.jabref.model.entry.BibEntry;
+import org.jabref.model.entry.field.StandardField;
+import org.jabref.model.entry.types.StandardEntryType;
+import org.jabref.testutils.category.FetcherTest;
+
+import kong.unirest.json.JSONObject;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+@FetcherTest
+public class BiodiversityLibraryTest {
+    private final String BASE_URL = "https://www.biodiversitylibrary.org/api3?";
+    private final String RESPONSE_FORMAT = "&format=json";
+    private final BuildInfo buildInfo = new BuildInfo();
+
+    private BiodiversityLibrary fetcher;
+
+    @BeforeEach
+    void setUp() {
+        ImporterPreferences importerPreferences = mock(ImporterPreferences.class);
+        when(importerPreferences.getApiKeys()).thenReturn(FXCollections.emptyObservableSet());
+        fetcher = new BiodiversityLibrary(importerPreferences);
+    }
+
+    @Test
+    public void testGetName() {
+        assertEquals("Biodiversity Heritage", fetcher.getName());
+        assertNotEquals("Biodiversity Heritage Library", fetcher.getName());
+        assertNotEquals("Biodiversity Library", fetcher.getName());
+    }
+
+    @Test
+    public void biodiversityHeritageApiKeyIsNotEmpty() {
+        BuildInfo buildInfo = new BuildInfo();
+        assertNotNull(buildInfo.biodiversityHeritageApiKey);
+    }
+
+    @Test
+    public void baseURLConstruction() throws MalformedURLException, URISyntaxException {
+        String expected = fetcher
+                .getTestUrl()
+                .concat(buildInfo.biodiversityHeritageApiKey)
+                .concat(RESPONSE_FORMAT);
+
+        assertEquals(expected, fetcher.getBaseURL().toString());
+    }
+
+    @ParameterizedTest
+    @ValueSource(strings = {"1234", "331", "121"})
+    public void getPartMetadaUrl(String id) throws MalformedURLException, URISyntaxException {
+        String expected = fetcher
+                .getTestUrl()
+                .concat(buildInfo.biodiversityHeritageApiKey)
+                .concat(RESPONSE_FORMAT)
+                .concat("&op=GetPartMetadata&pages=f&names=f")
+                .concat("&id=");
+
+        assertEquals(expected.concat(id), fetcher.getPartMetadataURL(id).toString());
+    }
+
+    @ParameterizedTest
+    @ValueSource(strings = {"1234", "4321", "331"})
+    public void getItemMetadaUrl(String id) throws MalformedURLException, URISyntaxException {
+        String expected = fetcher
+                .getTestUrl()
+                .concat(buildInfo.biodiversityHeritageApiKey)
+                .concat(RESPONSE_FORMAT)
+                .concat("&op=GetItemMetadata&pages=f&ocr=f&ocr=f")
+                .concat("&id=");
+
+        assertEquals(expected.concat(id), fetcher.getItemMetadataURL(id).toString());
+    }
+
+    @Test
+    public void testPerformSearch() throws FetcherException {
+        BibEntry expected = new BibEntry(StandardEntryType.Book)
+            .withField(StandardField.AUTHOR, "Ingersoll, Ernest, ")
+            .withField(StandardField.EDITOR, "University of Illinois Urbana-Champaign Alternates")
+            .withField(StandardField.LANGUAGE, "English")
+            .withField(StandardField.PUBLISHER, "University Library, University of Illinois Urbana Champaign")
+            .withField(StandardField.LOCATION, "Chicago")
+            .withField(StandardField.TITLE, "Dogs")
+            .withField(StandardField.URL, "https://www.biodiversitylibrary.org/item/219826")
+            .withField(StandardField.YEAR, "1879");
+
+        // fetcher returns more than entry, by default up to 200, but we only want to check one here
+        assertEquals(List.of(expected), fetcher.performSearch("dogs").subList(0, 1));
+    }
+
+    @Test
+    public void jsonResultToBibEntry() {
+        JSONObject input = new JSONObject("{\n\"BHLType\": \"Part\",\n\"FoundIn\": \"Metadata\",\n\"Volume\": \"3\",\n\"Authors\": [\n{\n\"Name\": \"Dimmock, George,\"\n}\n],\n\"PartUrl\": \"https://www.biodiversitylibrary.org/part/181199\",\n\"PartID\": \"181199\",\n\"Genre\": \"Article\",\n\"Title\": \"The Cocoons of Cionus Scrophulariae\",\n\"ContainerTitle\": \"Psyche.\",\n\"Date\": \"1882\",\n\"PageRange\": \"411--413\"\n}");
+        BibEntry expected = new BibEntry(StandardEntryType.Article)
+                .withField(StandardField.TITLE, "The Cocoons of Cionus Scrophulariae")
+                .withField(StandardField.AUTHOR, "Dimmock, George, ")
+                .withField(StandardField.PAGES, "411--413")
+                .withField(StandardField.DATE, "1882")
+                .withField(StandardField.JOURNALTITLE, "Psyche.")
+                .withField(StandardField.VOLUME, "3");
+
+        assertEquals(expected, fetcher.jsonResultToBibEntry(input));
+
+        input = new JSONObject("""
+                {
+                            "BHLType": "Item",
+                            "FoundIn": "Metadata",
+                            "ItemID": "174333",
+                            "TitleID": "96205",
+                            "ItemUrl": "https://www.biodiversitylibrary.org/item/174333",
+                            "TitleUrl": "https://www.biodiversitylibrary.org/bibliography/96205",
+                            "MaterialType": "Published material",
+                            "PublisherPlace": "Salisbury",
+                            "PublisherName": "Frederick A. Blake,",
+                            "PublicationDate": "1861",
+                            "Authors": [
+                                {
+                                    "Name": "George, George"
+                                }
+                            ],
+                            "Genre": "Book",
+                            "Title": "Potatoes : the poor man's own crop : illustrated with plates, showing the decay and disease of the potatoe [sic] : with hints to improve the land and life of the poor man : published to aid the Industrial Marlborough Exhibition"
+                        }""");
+         expected = new BibEntry(StandardEntryType.Book)
+                .withField(StandardField.TITLE, "Potatoes : the poor man's own crop : illustrated with plates, showing the decay and disease of the potatoe [sic] : with hints to improve the land and life of the poor man : published to aid the Industrial Marlborough Exhibition")
+                .withField(StandardField.AUTHOR, "George, George ")
+                .withField(StandardField.YEAR, "1861")
+                .withField(StandardField.LOCATION, "Salisbury")
+                .withField(StandardField.PUBLISHER, "Frederick A. Blake,");
+        assertEquals(expected, fetcher.jsonResultToBibEntry(input));
+
+        input = new JSONObject("""
+                {
+                            "BHLType": "Item",
+                            "FoundIn": "Metadata",
+                            "ItemID": "200116",
+                            "TitleID": "115108",
+                            "ItemUrl": "https://www.biodiversitylibrary.org/item/200116",
+                            "TitleUrl": "https://www.biodiversitylibrary.org/bibliography/115108",
+                            "MaterialType": "Published material",
+                            "PublisherPlace": "Washington",
+                            "PublisherName": "Government Prining Office,",
+                            "PublicationDate": "1911",
+                            "Authors": [
+                                {
+                                    "Name": "Whitaker, George M. (George Mason)"
+                                }
+                            ],
+                            "Genre": "Book",
+                            "Title": "The extra cost of producing clean milk."
+                        }""");
+        expected = new BibEntry(StandardEntryType.Book)
+                .withField(StandardField.TITLE, "The extra cost of producing clean milk.")
+                .withField(StandardField.AUTHOR, "Whitaker, George M. (George Mason) ")
+                .withField(StandardField.YEAR, "1911")
+                .withField(StandardField.LOCATION, "Washington")
+                .withField(StandardField.PUBLISHER, "Government Prining Office,");
+        assertEquals(expected, fetcher.jsonResultToBibEntry(input));
+    }
+}