* Update copyright year and project version
- Fixes version in lib
* Update copyright year to 2026
* Update copyright year to 2026 in Version.cpp
* Update copyright year and version patch test
* Fix copyright year
* Adapt copyrights
A segmentation fault occurred while parsing an MD5 file that contains an invalid vertex index.
The issue was caused by mScene->mMaterials not being kept in sync with mScene->mNumMaterials.
As a result, the aiScene destructor could call delete on uninitialized pointers. This patch
ensures that mScene->mNumMaterials always matches the actual contents of the mScene->mMaterials
array. That way, if an exception is thrown during file import, delete is only called for
properly allocated aiMaterial objects.
BaseImporter::SearchFileHeaderForToken() expected a pointer to a non-const token list. This was probably an oversight, as nobody would realistically expect the function to change the list. Furthermore, it prevented token lists from being compiled to read-only memory, in some cases even causing the compiler to generate thread-safe initialization.
The list is now const and all callers declare their token lists static const, thus compiling them to read-only memory.
The search for a matching importer had a few issues, see #3791. There were two different mechanisms to determine whether an importer accepts a specific file extension:
1. `aiImporterDesc::mFileExtensions`, which was forwarded to the UI via `BaseImporter::GetExtensionList()`.
2. `BaseImporter::CanRead()` when called with `checkSig == false`, which determines whether to actually use that importer.
Both were redundant and got out of sync repeatedly. I removed 2. completely and replaced it with 1., thereby syncing UI/import and shortening all `BaseImporter::CanRead()` implementations.
Further bugfixes:
- fixed glTF2 importer throwing exceptions when checking whether it can load a file
- removed `BaseImporter::SimpleExtensionCheck()` because it is no longer used and had a bug with case sensitivity
Since the `checkSig` parameter in `BaseImporter::CanRead()` is now useless, it can be removed completely. I’m not sure if this would break ABI compatiblity, so I’ll submit it with a later pull request.
