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About the API Announcements category
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0
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23957
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December 8, 2016
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Rate Limit Error Message Improvements
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0
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93
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June 29, 2022
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Rejecting TLS 1.0 / 1.1 for inbound ACME connections
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1
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483
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May 17, 2022
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Rejecting SHA-1 CSRs and validation using TLS 1.0 / 1.1 URLs
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0
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849
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April 4, 2022
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Changes to TLS-ALPN-01 challenge validation
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1
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6224
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January 26, 2022
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Change in Revocation Methods Due to a (now patched) ACME bug
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1
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1650
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December 13, 2021
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Staging partial database reset, 15 Nov 2021
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1
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807
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November 15, 2021
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Production Chain Changes
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3
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64880
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September 29, 2021
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End of Life Plan for ACMEv1
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27
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172759
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September 15, 2021
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Providing a longer certificate chain by default
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1
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6541
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May 4, 2021
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ECDSA availability in production environment
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0
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16888
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April 28, 2021
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OpenSSL Client Compatibility Changes for Let’s Encrypt Certificates
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0
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46858
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January 27, 2021
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ECDSA Issuance available in Staging: March 24
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0
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5637
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March 19, 2021
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Staging maintenance and database reset, 2 March 2021
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1
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1398
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March 2, 2021
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Staging Hierarchy Changes
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3
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2720
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February 26, 2021
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Stability and Purpose of Staging
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0
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1171
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February 23, 2021
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ACME v2: Removing /acme/issuer-cert endpoint
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0
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1795
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December 12, 2020
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Beginning Issuance from R3
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2
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18308
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December 2, 2020
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ACME v2 - Scheduled deprecation of unauthenticated resource GETs
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4
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26582
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September 24, 2020
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Transitioning to ISRG's Root
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0
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8379
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May 21, 2019
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Transition to ISRG's Root delayed until Jan 11 2021
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2
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55392
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September 17, 2020
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Issuing for common RSA key sizes only
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0
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1893
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September 16, 2020
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ACME v1/v2: Validating challenges from multiple network vantage points
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5
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40847
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June 23, 2020
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ACME v1/v2 - Changing "Challenges" returned for invalid/valid authorizations
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2
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2503
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January 14, 2020
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New CDN for the Production API
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0
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5403
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September 23, 2019
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New CDN for the Staging API
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0
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1992
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September 12, 2019
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RFC 8555 Subproblems
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1
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2229
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July 23, 2019
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ACME v2 - Scheduled removal of ID from account objects
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1
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2884
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August 1, 2019
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Rejecting incorrectly padded EC JWKs
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1
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1248
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July 1, 2019
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March 13, 2019: End-of-Life for All TLS-SNI-01 Validation Support
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7
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82146
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March 15, 2019
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