chore: changelog update

Author: GrePod

CHANGELOG.md

@@ -1,5 +1,22 @@
 # Changelog
 
+## [v1.2.8](https://github.com/flare-foundation/fdc-client/tree/v1.2.7) - 2026-3-?
+
+### Changed
+
+- Default system config of VoterRegistry contract address on Coston2
+- VoterRegistered event parsing updated on Coston2
+
+### Fix
+
+- voter registered event selector variable override on transition of registry contracts fixed
+
+## [v1.2.7](https://github.com/flare-foundation/fdc-client/tree/v1.2.7) - 2026-3-10
+
+### Changed
+
+- Default system config of Relay contract address on all chains.
+
 ## [v1.2.6](https://github.com/flare-foundation/fdc-client/tree/v1.2.6) - 2026-3-9
 
 ### Added