Update global and mithril-stm changelogs

Author: Alenar

CHANGELOG.md

@@ -17,6 +17,11 @@ As a minor extension, we have adopted a slightly different versioning convention
 
 - Chain observers support the retrieval of the current Cardano chain point.
 
+-  Deprecate `portable` feature of `mithril-stm` and `mithril-client`:
+   - Instead, always enable BLST `portable` feature in `mithril-stm` for runtime check of intel ADX instruction set.
+   - `portable` feature now has no effect and should be removed from crate dependencies.
+   - Removed it from all other crates (including `mithril-common`).
+
 - Crates versions:
 
 |  Crate  |  Version  |

mithril-stm/CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 0.3.18 (11-04-2024)
+
+- Deprecate `portable` feature:
+    - Instead, always enable BLST `portable` feature for runtime check of intel ADX instruction set.
+    - `portable` feature now has no effect and should be removed from crate dependencies.
+
 ## 0.3.7 (10-10-2023)
 
 ### Added