Noteworthy changes in version 1.4.0 (2020-05-19) [C20/A12/R0]
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* Supports ECDSA and EdDSA certificate creation and parsing. [T4896]
* Supports ECDH enveloped data. [T4920]
* Supports ECDSA and EdDSA signed data. [T4920]
* Supports rsaPSS signature verification. [T4538]
* Supports standard file descriptors in ksba_reader_read. [T3072]
* New configure flag --disable-doc.
* Improves supports for reproducible builds. [T4801]
* Allows for optional elements in keyinfo objects. [T4892]
* Updates the config and M4 scripts to the latest version.
* Fixes error detection in the CMS parser. [T4207]
* Fixes memory leak in ksba_cms_identify.
* Fixes build warnings on macOS. [T2910]
* Uses --disable-new-dtags if LD_LIBRARY_PATH is defined. [T4298]
* New constants KSBA_VERSION and KSBA_VERSION_NUMBER.
* New API to make creation of DER objects easy.