Add blog post announcing v0.15.8

Author: alerque

content/blog/release-v0.15.8.md

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+title = "SILE v0.15.8 Is Released"
+date = "2024-12-12"
+
+[extra]
+post_author = "Caleb Maclennan"
+post_gravatar = "11cdaff4c6f9b290db40f69d3b20caf1"
++++
+
+Version v0.15.8 of SILE has been released and is [available for download][release]!
+See the included [CHANGELOG.md][changelog] or review the [commit history][commits] for more explicit details.
+
+### Summary of Improvements
+
+This release fixes build issues for macOS (Darwin) we introduced back in v0.15.6 that have been holding back releases on Homebrew and Nix's Darwin support.
+In addition to the build support, the `macfonts` font loader has been tweaked to support fallback to `fontconfig` when a font is not found so it will behave more similarly to Linux builds.
+
+On all platforms, CLI output is a bit cleaner.
+Many runtime errors now output cleaner message formatting instead of a jumble of joined lines.
+Also some error chains where one error would trigger another have been resolved.
+
+The math support continues to be refined by [Didier Willis](http://github.com/Omikhleia), this release bringing a few new commands and features, better behavior parity with MathML, and a couple bug fixes.
+
+### New Features
+
+* **build:** Add rockspec and build tooling for rusile module ([d1ed71e](https://github.com/sile-typesetter/sile/commit/d1ed71e548a858631b083c7da3985f157f0ce809))
+* **cli:** Output runtime errors pretty-printed for readability ([fb45160](https://github.com/sile-typesetter/sile/commit/fb451604befa196f5e591f8de251455d9af96b08))
+* **fonts:** Configure macOS to fallback from macfonts to fontconfig ([4b6aa5e](https://github.com/sile-typesetter/sile/commit/4b6aa5ed00747ea22932547770aca62c8add28a4))
+* **math:** Add (AMS)LaTeX-like stackrel, overset and underset ([bfd41c0](https://github.com/sile-typesetter/sile/commit/bfd41c0786ffd994b4ae2237c378eee1fabd4eae))
+* **math:** Minimal support for accents in MathML and TeX-like commands ([dd0b1b5](https://github.com/sile-typesetter/sile/commit/dd0b1b5f77b498589e4d490466fa8b3d14ee93f1))
+* **packages:** Add handler for passing raw content to verbatim ([46b0164](https://github.com/sile-typesetter/sile/commit/46b01644e72f80a3b1820b7b157f995ade5a3c29))
+
+### Bug Fixes
+
+* **build:** Fix Lua module detection to *fail* if not found ([18f707b](https://github.com/sile-typesetter/sile/commit/18f707b09301d635da15118b0e03382a817dfa45))
+* **build:** Remove obsolete workaround for macOS dependency paths ([3fb891a](https://github.com/sile-typesetter/sile/commit/3fb891a12079a79a330fefdc1cbd9960e78c6ea4))
+* **build:** Set module build flags needed for darwin shared libraries ([625ea69](https://github.com/sile-typesetter/sile/commit/625ea694f3f209704ae3b75096de894e2e33d4bf))
+* **cli:** Correctly pass through font manager preference from Rust CLI ([d2fb48a](https://github.com/sile-typesetter/sile/commit/d2fb48a063753fc7621d785236e154bf22812865))
+* **core:** Avoid internal error when also erroring due to user provided content errors ([d83e63c](https://github.com/sile-typesetter/sile/commit/d83e63cdbfdcfd8439212b9261f2dc5fbd24620a))
+* **inputters:** Discard duplicate values being parsed without keys in XML ([4bb31f0](https://github.com/sile-typesetter/sile/commit/4bb31f0aefaf9da500f417a73302ef148ec36a65))
+* **math:** Change under/over constructs' inheritance of the base atom type ([70d4f69](https://github.com/sile-typesetter/sile/commit/70d4f69f1990ba7d774309be47595815b0ee23ed))
+* **math:** Erroneous capital H and I in fraktur variant ([#2183](https://github.com/sile-typesetter/sile/issues/2183)) ([3263be3](https://github.com/sile-typesetter/sile/commit/3263be3743563688c08b9e9a6b848568bf7b360b))
+* **outputters:** Don't attempt to create output if we error before processing even starts ([d38ff03](https://github.com/sile-typesetter/sile/commit/d38ff03f134062a4ab8237da67f9a68bfb6c7fcc))
+* **rusile:** Adjust module loader to Darwin's shared module extension ([2c5ea3e](https://github.com/sile-typesetter/sile/commit/2c5ea3e8ab62c81808c6a73bc83f39f4ced3cbd7))
+
+
+  [release]: https://github.com/sile-typesetter/sile/releases/tag/v0.15.7
+  [changelog]: https://github.com/sile-typesetter/sile/blob/master/CHANGELOG.md
+  [commits]: https://github.com/sile-typesetter/sile/compare/v0.15.6...v0.15.7
+  [bibliography]: https://github.com/orgs/sile-typesetter/projects/12
+
+