Release 3.10.0 · purelogiccode/CHDStudio

3.10.0 (2026-10-21)

PBP disc offsets are 64-bit throughout the parser. PSAR and per-disc positions were widened before every seek, so a multi-gigabyte PBP whose later disc lies beyond the signed 32-bit boundary no longer fails with a bogus IoError.
Truncated multi-disc PBPs are identified before extraction. A disc position that points past the end of the file is reported as TruncatedPsar instead of seeking to a negative offset or producing a partial BIN.
PSAR blocks get a second inflater. Blocks rejected by SharpZipLib's stricter state machine are retried with the .NET zlib implementation; a block is accepted only when it produces exactly one complete 16-sector block.
PBP extraction checks free space first. The estimate uses each disc's declared ISO size plus a margin, and a nearly full temp drive gets an actionable message before a multi-gigabyte extraction starts.

A CD CHD with missing or damaged track metadata is rejected with a precise message instead of a bare Chderrinvaliddata. The diagnostic log records the track count and metadata tags so a damaged CHT2/CHTR section is distinguishable from a non-CD image.
The message and log guidance tell the user to re-create the CHD from its cue/bin. This is classified as damaged user data, not an application bug.
Malformed cue lead-out and truncated-image errors now include recovery guidance, and both are excluded from automatic bug reports.

A missing native rendering library no longer produces an unhandled startup crash. The app exits with a clear message naming libHarfBuzzSharp, libSkiaSharp and the platform native backend, and writes startup-error.log when the console is unavailable. This normally means the release zip was not extracted in full; copying every file beside the executable fixes it.
More routine conditions are excluded from the bug tracker: missing native libraries, temp-directory cleanup held open by antivirus/indexers, damaged CHD track metadata, malformed cue lead-outs and truncated source images.
InspectCode warnings are cleared. The solution now reports zero warning-level inspections; a warning-level InspectCode.log is available for local verification.

All six release bundles are produced from the same version: win-x64, win-arm64, linux-x64, linux-arm64, osx-x64 and osx-arm64.
Each zip contains the framework-dependent single-file app, its native libraries, the correct architecture's tools, LICENSE.txt, ReadMe.md and WhatsNew.md. No .NET runtime is embedded; users install the .NET 10 runtime.
Linux/macOS zips preserve Unix execute bits (0755 for CHDStudio and 7zz), and the release workflow verifies them before publishing.
Pages and wiki documentation are deployed from the same docs/ tree, with a dark Just-the-Docs side menu and a wiki _Sidebar.md. Pull requests build the Pages site; master deploys it and syncs the wiki.
The documentation index, ReadMe badges and package tables now carry the 3.10.0 release data.