Sourced from ecdsa's releases.

ecdsa 0.19.1

New API:

• der.remove_implicit and der.encode_implicit for decoding and encoding DER IMPLICIT values with custom tag values and arbitrary classes

Bug fixes:

• Minor fixes around arithmetic with curves that have non-prime order (useful for experimentation, not practical deployments)
• Fix arithmetic to work with curves that have (0, 0) on the curve
• Fix canonicalization of signatures when s is just slightly above half of curve order

Maintenance:

• Dropped official support for Python 3.5 (again, issues with CI, support for Python 2.6 and Python 2.7 is unchanged)
• Officially support Python 3.12 and 3.13 (add them to CI)
• Removal of few more unnecessary six.b literals (Alexandre Detiste)
• Fix typos in warning messages

ecdsa 0.19.0

New API:

• to_ssh in VerifyingKey and SigningKey, supports Ed25519 keys only (Pablo Mazzini)

New features:

• Support for twisted Brainpool curves

Doc fix:

• Fix curve equation in glossary
• Documentation for signature encoding and signature decoding functions

Maintenance:

• Dropped official support for 3.3 and 3.4 (because of problems running them in CI, not because it's actually incompatible; support for 2.6 and 2.7 is unaffected)
• Fixes around hypothesis parameters
• Officially support Python 3.11 and 3.12
• Small updates to test suite to make it work with 3.11 and 3.12 and new releases of test dependencies
• Dropped the internal _rwlock module as it's unused
• Added mutation testing to CI, lots of speed-ups to the test suite to make it happen
• Removal of unnecessary six.b literals (Alexandre Detiste)

Deprecations:

... (truncated)

Sourced from ecdsa's changelog.

• Release 0.19.1 (13 Mar 2025)

New API:

• der.remove_implitic and der.encode_implicit for decoding and encoding DER IMPLICIT values with custom tag values and arbitrary classes

Bug fixes:

• Minor fixes around arithmetic with curves that have non-prime order (useful for experimentation, not practical deployments)
• Fix arithmetic to work with curves that have (0, 0) on the curve
• Fix canonicalization of signatures when s is just slightly above half of curve order

Maintenance:

• Dropped official support for Python 3.5 (again, issues with CI, support for Python 2.6 and Python 2.7 is unchanged)

• Officialy support Python 3.12 and 3.13 (add them to CI)

• Removal of few more unnecessary six.b literals (Alexandre Detiste)

• Fix typos in warning messages

• Release 0.19.0 (08 Apr 2024)

New API:

• to_ssh in VerifyingKey and SigningKey, supports Ed25519 keys only (Pablo Mazzini)

New features:

• Support for twisted Brainpool curves

Doc fix:

• Fix curve equation in glossary
• Documentation for signature encoding and signature decoding functions

Maintenance:

• Dropped official support for 3.3 and 3.4 (because of problems running them in CI, not because it's actually incompatible; support for 2.6 and 2.7 is unaffected)
• Fixes aroung hypothesis parameters
• Officially support Python 3.11 and 3.12
• Small updates to test suite to make it work with 3.11 and 3.12 and new releases of test dependencies
• Dropped the internal _rwlock module as it's unused
• Added mutation testing to CI, lots of speed-ups to the test suite to make it happen
• Removal of unnecessary six.b literals (Alexandre Detiste)

Deprecations:

• int_to_string, string_to_int, and digest_integer from ecdsa.ecdsa

... (truncated)

• 2a6593d Merge pull request #359 from tlsfuzzer/release-0.19.1
• 658ddc8 add release notes for 0.19.1 release
• 3c5df06 Merge pull request #358 from tlsfuzzer/high-s-values
• b6d43c6 use integer division for canonicalization of signatures
• aa81ba3 Merge pull request #357 from tlsfuzzer/new-badge
• ef75fea use the new badge URL for the build status
• 10d7435 Merge pull request #356 from tlsfuzzer/implicit-tags
• dba9f80 add support for encoding
• 8e3f653 add support for parsing implicit DER tags
• 55d2b56 Merge pull request #355 from tlsfuzzer/doc-update
• Additional commits viewable in compare view

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