altcha-org/altcha
A lightweight PHP library for creating and verifying ALTCHA challenges.
v2.1.0
1.1M downloads/mo
#1818 most downloaded on Packagist
altcha-org/altcha-lib-php
What this package is like to depend on
Last release 1 months ago
20 Jul 2026
Release timing varies
gaps range from 8 days to 7 months
Some releases are documented
notes for 6 of 19 stable releases
Nothing withdrawn
no release was ever pulled
2 years old
21 releases · first in 2024
12 releases in the last 12 months
see the full history below
Release timeline
21 releases · Jul 2024 to Jul 2026Releases
latest 21-
v2.1.020 Jul 2026Release notes
Open source →Changes:
- feat:
VerifySolutionOptions::$payloadnow accepts a raw base64 string or a decoded array directly, in addition to aPayloadobject [#24] - feat: add
Sentinel::verify()for remote payload verification via the ALTCHA Sentinel API (POST /v1/verify/signature), with configurable timeout, retries/backoff, and a pluggable HTTP client
- feat:
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v2.0.302 Jul 2026Release notes
Open source →Changes:
- fix: verifySolution - reject missing challenge signature when secret is set
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v2.0.229 Apr 2026Nothing published for this version
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v2.0.129 Apr 2026 -
v2.0.007 Apr 2026Release notes
Open source →Breaking changes:
- This version introduces the new PoW mechanism v2
- Refer to the migration guide
MIGRATION-v1.mdand available examples
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v2.0.0-beta202 Apr 2026 pre-releaseNothing published for this version
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v2.0.0-beta125 Mar 2026 pre-releaseNothing published for this version
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v1.3.302 Apr 2026 -
v1.3.228 Feb 2026Nothing published for this version
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v1.3.113 Dec 2025Release notes
Open source →Changes:
- fix: replace ; with & in salt delimiter for compatibility (this allows for backward-compatible extraction of salt parameters with previous versions of the libraries while still preventing the salt parameter splicing attack)
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v1.3.011 Dec 2025Nothing published for this version
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v1.2.017 Nov 2025Nothing published for this version
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v1.1.206 Apr 2025Nothing published for this version
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v1.1.123 Mar 2025Nothing published for this version
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v1.1.016 Mar 2025Nothing published for this version
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v1.0.016 Mar 2025Nothing published for this version
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v0.1.428 Feb 2025Nothing published for this version
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v0.1.306 Dec 2024Nothing published for this version
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v0.1.228 Jul 2024Nothing published for this version
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v0.1.126 Jul 2024Nothing published for this version
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v0.1.026 Jul 2024Nothing published for this version