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PCN No.
Released Date
Proposed Date of Change
Proposed Date of First Shipment
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Upgrade ESP32-S2 Series Products Based on ESP32-S2FH4
PCN20240602
2024.07.02
2024.09.02
2024.10.02
Upgrade Chip Revision of ESP32-S2 Series Products Based on ESP32-S2FH2
PCN20231201
2023.12.05
2023.12.31
2023.12.31
Upgrade Chip Revision of ESP32-S2 Series Products Based on ESP32-S2
PCN20230702
2023.07.28
2023.09.28
2023.11.01
Upgrade Chip Revision of ESP32-S2 Series Products Based on ESP32-S2R2 and ESP32-S2FN4R2
PCN20230601
2023.06.29
2023.08.29
2023.09.29
Remove "External power amplifier support" Feature in ESP32-S2, ESP32-S3, ESP8684, ESP8685, ESP32-C3 Chip Datasheets
PCN20221102
2022.12.01
2022.12.14
2022.12.14
Espressif Common AT Firmware is not Flashed to ESP32-S2 & ESP8266 (16MB flash) Series of Modules by Default from the Manufacturing Line
PCN-2021-026
2021.10.22
2022.01.05
2022.01.22
Introduction of AT firmware V2.1.0.0 as the first published AT firmware for ESP32-S2 series Modules and DevKits
PCN-2020-014
2020.09.11
2020.09.11
2020.12.11
Strengthening the ESP8266/ESP32/ESP32-S2 Module Series Tape Reel by Embossing Cross Patterns at the Bottom of each Tray
PCN-2020-008
2020.08.17
2020.08.17
2020.09.14
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