diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 3693e6f..bf3f6b1 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1 +1 @@
-{".":"2.1.1"}
+{".":"3.0.0"}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index bbcbdb9..6c5e883 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 # Changelog
 
+## [3.0.0](https://github.com/Flagsmith/flagsmith-rust-client/compare/v2.1.1...v3.0.0) (2026-08-11)
+
+
+### ⚠ BREAKING CHANGES
+
+* declare MSRV 1.86 and enforce it in CI ([#50](https://github.com/Flagsmith/flagsmith-rust-client/issues/50))
+
+### Features
+
+* declare MSRV 1.86 and enforce it in CI ([#50](https://github.com/Flagsmith/flagsmith-rust-client/issues/50)) ([294eb0c](https://github.com/Flagsmith/flagsmith-rust-client/commit/294eb0c902e5107adf1e17058c50f74e74067116))
+
 ## [2.1.1](https://github.com/Flagsmith/flagsmith-rust-client/compare/v2.1.0...v2.1.1) (2026-07-21)
 
 
diff --git a/Cargo.toml b/Cargo.toml
index bedb274..ad0f3cf 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "flagsmith"
-version = "2.1.1"
+version = "3.0.0"
 authors = ["Gagan Trivedi <gagan.trivedi@flagsmith.com>", "Kim Gustyr <kim.gustyr@flagsmith.com>"]
 edition = "2021"
 license = "BSD-3-Clause"