8.1.0: XP 12 compatibility

• Made compatible with XP 12 - @thekid

8.0.0: Drop XP <= 9

• Implemented xp-framework/rfc#341: Drop XP <= 9 compatibility - @thekid

7.1.0: Quoted keys

• Added PHP 8.4 to the test matrix - @thekid
• Merged PR #11: Support quoted and typed keys - @thekid
• Merged PR #10: Migrate to new testing library - @thekid

7.0.1: Nested maps fix

• Fixed nested maps spanning multiple lines in flow syntax - @thekid

7.0.0: Anchor, Aliases and Merge Keys

• Merged PR #8: Implement Merge Key
  (@thekid)
• Merged PR #7: Allow passing identifiers to YamlParser's parse()
  and documents() methods.
  (@thekid)

6.0.3: PHP 8.2 compatibility

• Fixed "Creation of dynamic property" warnings in PHP 8.2 - @thekid

6.0.2: XP 11 compatibility

• Made library compatible with XP 11 - @thekid

6.0.1: PHP 8.0.0RC1 compatibility

• Fixed strspn(): Argument #3 ($offset) must be contained... warning
  (@thekid)

6.0.0: Drop PHP 5 support

• Implemented xp-framework/rfc#334: Drop PHP 5.6:
  . Heads up: Minimum required PHP version now is PHP 7.0.0
  . Rewrote code base, grouping use statements
  . Converted newinstance to anonymous classes
  (@thekid)

5.2.2: Annotation syntax

• Implemented RFC #335: Remove deprecated key/value pair annotation syntax
  (@thekid)