Rotate release notes as part of the 2.1.0 release

Author: ponylang-main

.release-notes/2.1.0.md

@@ -0,0 +1,8 @@
+## Use prebuilt LibreSSL binaries on Windows
+
+The `libs` command has been removed from `make.ps1`. CI now downloads prebuilt LibreSSL static libraries directly from the [LibreSSL GitHub releases](https://github.com/libressl/portable/releases) instead of building from source. Windows users who were using `make.ps1 -Command libs` to build LibreSSL locally can download prebuilt binaries from the same location. Prebuilt binaries are available for x86-64 and ARM64.
+
+## Add OpenSSL 4.0.x support
+
+OpenSSL 4.0.x is now a supported backend. Select it at compile time with `-Dopenssl_4.0.x`, or pass `ssl=4.0.x` to `make` when building the library itself. The library's API is unchanged; existing code continues to work without modification.
+

.release-notes/next-release.md

@@ -1,8 +0,0 @@
-## Use prebuilt LibreSSL binaries on Windows
-
-The `libs` command has been removed from `make.ps1`. CI now downloads prebuilt LibreSSL static libraries directly from the [LibreSSL GitHub releases](https://github.com/libressl/portable/releases) instead of building from source. Windows users who were using `make.ps1 -Command libs` to build LibreSSL locally can download prebuilt binaries from the same location. Prebuilt binaries are available for x86-64 and ARM64.
-
-## Add OpenSSL 4.0.x support
-
-OpenSSL 4.0.x is now a supported backend. Select it at compile time with `-Dopenssl_4.0.x`, or pass `ssl=4.0.x` to `make` when building the library itself. The library's API is unchanged; existing code continues to work without modification.
-