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About the API Announcements category
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0
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30993
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December 8, 2016
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Removing OCSP URLs from Certificates
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0
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184
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April 24, 2025
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Adding CRL URLs to certificates
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2
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1867
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March 12, 2025
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Support for OCSP Must-Staple Now Disabled
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1
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679
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January 31, 2025
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Ending Support for Expiration Notification Emails
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0
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233
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January 23, 2025
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Announcing Certificate Profile Selection
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0
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465
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January 9, 2025
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Automatic Pausing of Zombie Clients
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2
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905
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December 5, 2024
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Ending OCSP Support in 2025
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0
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414
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December 5, 2024
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Shortening the Let's Encrypt Chain of Trust
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9
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8987
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September 30, 2024
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Rejecting TLS 1.0 / 1.1 for inbound ACME connections
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3
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2514
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August 26, 2024
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Disabling deprecated TLS cipher suites during validation
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4
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978
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July 24, 2024
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EDNS Buffer Size Changing to 512 Bytes (In 2024: now 1232)
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2
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6958
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July 8, 2024
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Let’s Encrypt Domain Multiple Perspective Validation Ordering Change
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0
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648
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June 13, 2024
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Deploying Let's Encrypt's New Issuance Chains
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6
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5349
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June 6, 2024
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ECDSA availability in production environment
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1
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31911
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May 30, 2024
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Discontinuing support for ACME clients using draft-ietf-acme-ari-01
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1
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1212
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April 25, 2024
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Let's Encrypt is adding two new remote perspectives for domain validation
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2
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5390
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March 27, 2024
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Let's Encrypt staging is now including a new SCT extension in certificates
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0
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569
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February 17, 2024
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Enabling SHA256 Subject Key Identifiers for end-entity certificates
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3
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1416
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January 25, 2024
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DNS Resolver Upgrade To Unbound 1.19
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1
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1335
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December 20, 2023
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DNS Resolver Upgraded to Unbound 1.18, Empty Responses require SOA sections
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0
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929
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December 19, 2023
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Simplifying Issuance for Very Long Domain Names
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4
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3232
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November 29, 2023
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Checking validation and CAA serially rather than in parallel
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0
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800
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September 21, 2023
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Root X2 alternate chain for ECDSA opt-in accounts
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1
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2461
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August 9, 2023
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Small change to end entity certificates: CPS URL and OID will not be included from June 15
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4
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2334
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June 15, 2023
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Enabling Asynchronous Order Finalization
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7
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5684
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April 6, 2023
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Possible API connection disruptions
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1
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902
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March 1, 2023
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Enabling ACME CAA Account and Method Binding
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2
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13358
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December 16, 2022
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New "Service Busy" responses beginning during high load
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2
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6953
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September 26, 2022
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Upcoming changes to revocation reasons
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1
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1551
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September 21, 2022
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