C/C++: ABI stability and binary compatibility between "patch" versions

[paramon]

Hi Alexander,

HDF5 users share your disappointment!

I have reported the problem recently:

HDFView 3.0 Pre-release - Newsletter #163 - The HDF Group

Hello! Just tried to update from HDF5 10.1 to HDF5 10.4 in my codebase, and apparently HDF5 release 10.3 did break library API compatibility. Specifically, functions H5Oget_info, H5Oget_info_by_idx, H5Oget_info_by_name, H5Ovisit, H5Ovisit_by_name are now available either with new definition (suffixed with 2) or with original definition (suffixed with 1), but never by original name (without suffix). Older client code relying on original names will break, as confirmed by e.g. https://github.com/…

Hopefully it’s fixed in 1.10.5, so that lost symbols get back.

Best wishes,
Andrey Paramonov