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About the CT Announcements category
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0
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5345
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May 15, 2019
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Upcoming Let’s Encrypt CT Log Changes - Shutting down 2025 shards
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0
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138
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January 29, 2026
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The Let's Encrypt Oak log is now read-only
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0
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176
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December 11, 2025
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Introducing Sunlight, a CT implementation built for scalability, ease of operation, and reduced cost
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0
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335
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March 14, 2024
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Shutting down Sapling 2023h2 and Oak 2023
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0
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299
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February 27, 2024
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Shutting down Oak 2022
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0
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422
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November 1, 2023
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Shutting down Sapling 2022h2 and 2023h1
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1
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461
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October 25, 2023
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Nuturing Continued Growth of our Oak CT Log
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0
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646
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June 13, 2022
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Announcing the Sapling CT test log
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0
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783
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June 13, 2022
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Deleting Oak 2019, 2020, and 2021 shards
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0
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678
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June 13, 2022
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Chopping down the Let's Encrypt Testflume CT Log
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1
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777
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May 4, 2022
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Removed Testflume from our Status Page
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1
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741
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April 26, 2021
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Retiring Let’s Encrypt Testflume and Oak 2019/2020 CT shards
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0
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884
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February 23, 2021
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Enabling coerced get-entries
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2
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1760
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March 2, 2020
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Oak shards are now usable by Certificate Authorities
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1
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977
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February 18, 2020
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How Let's Encrypt Runs CT Logs
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0
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1238
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November 21, 2019
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