Update changelog (#1136)

CHANGELOG.md

@@ -1,5 +1,6 @@
 # Changelogs
 
+- [v1.1](docs/changelogs/v1.1.md)
 - [v1.0](docs/changelogs/v1.0.md)
 - [v0.31](docs/changelogs/v0.31.md)
 - [v0.30](docs/changelogs/v0.30.md)

docs/changelogs/v1.1.md

@@ -0,0 +1,38 @@
+# Changelog v1.1
+
+## 1.1.0 (Jul 6, 2023)
+
+### Fork (Upgrade 12)
+
+- IIP-12: Locking invitee rewards ([#1133])
+- IIP-11: Increasing the cost of 51% attack ([#1132])
+- IIP-2: Change the time of validation ceremony ([#1134])
+- IIP-9: Change the epoch length ([#1130])
+- IIP-10: Stake protection for Zombie status ([#1131])
+- Short session validation criteria ([#1129])
+- Bug fixes ([#1127], [#1128])
+
+### Changes
+
+- Add format parameter to dna_sign RPC method ([#1135])
+
+[#1127]: https://github.com/idena-network/idena-go/pull/1127
+
+[#1128]: https://github.com/idena-network/idena-go/pull/1128
+
+[#1129]: https://github.com/idena-network/idena-go/pull/1129
+
+[#1130]: https://github.com/idena-network/idena-go/pull/1130
+
+[#1131]: https://github.com/idena-network/idena-go/pull/1131
+
+[#1132]: https://github.com/idena-network/idena-go/pull/1132
+
+[#1133]: https://github.com/idena-network/idena-go/pull/1133
+
+[#1134]: https://github.com/idena-network/idena-go/pull/1134
+
+[#1135]: https://github.com/idena-network/idena-go/pull/1135
+
+
+