doc(blog): add a blog post about the upcoming glibc min version bump

Author: Alenar

docs/website/blog/2025-02-04-glibc-minimum-requirement-change.md

@@ -0,0 +1,55 @@
+---
+title: Minimum Required glibc Version Bump
+authors:
+  - name: Mithril Team
+tags: [mithril client, cli, breaking-change]
+---
+
+# Upcoming Change: Minimum Required glibc Version Bump
+
+:::info
+This only affects users who rely on the **precompiled Linux binaries** provided by the Mithril team.
+
+If you compile the binaries from source or use a different operating system, you are not affected by this change.
+:::
+
+Following [the deprecation of `Ubuntu 20.04` in GitHub Actions](https://github.com/actions/runner-images/issues/11101),
+we are updating the minimum required glibc version for our Linux binaries from `2.31` to `2.35`.
+
+## Current Situation
+
+Our Continuous Integration (CI) uses GitHub Actions to build and test the Mithril binaries for different platforms.
+
+Currently, our CI builders target `Ubuntu 20.04` to build Linux binaries, leading to a minimum required glibc version of
+`2.31`.
+This version is compatible with systems such as `Ubuntu 20.04` and `Debian 11 (Bullseye)`.
+
+However, with the release of `Ubuntu 24.04`, GitHub Actions is dropping support for `Ubuntu 20.04` as they only support
+the last two LTS versions.
+
+As a result, we need to update our CI environment to use a more recent version of Ubuntu.
+
+## Upcoming Change
+
+Distribution `2506` will be the last distribution with a minimum required glibc version of `2.31`.
+
+After the release of distribution `2506`, our CI builders will be updated to use `Ubuntu 22.04`. Raising the minimum
+required glibc version for our Linux binaries to `2.35`.
+
+## Impact on Users
+
+The new glibc version `2.35` is compatible with systems such as `Ubuntu 22.04` and `Debian 12 (Bookworm)`.
+
+If you are using a system with an older version of glibc, you can either:
+
+- Upgrade your system to a newer version that supports glibc `2.35` to continue using our compiled binaries.
+- Compile the binaries from source to avoid upgrading your system.
+
+## Summary
+
+- **Current minimum glibc version**: `2.31`
+  - Examples of compatible systems: `Ubuntu 20.04`, `Debian 11 (Bullseye)`
+- **New minimum glibc version**: `2.35` (effective **after** distribution `2506` release)
+  - Examples of compatible systems: `Ubuntu 22.04`, `Debian 12 (Bookworm)`
+
+For any inquiries or assistance, don't hesitate to contact the team on the [Discord channel](https://discord.gg/5kaErDKDRq).