Arduino 3.x

Arduino 3.x is not officially suported by PlatformIO - see #1225

Due to the lack of further development of the Espressif 32 Arduino Core for PlatformIO, the pioarduino fork was created.

platform-espressif32	Arduino Core	based on ESP-IDF
51.03.10+rc1	3.1.0-rc1	5.3.0
51.03.04	3.0.4	5.1.4
51.03.03	3.0.3	5.1.4
2024.07.00	3.0.2	5.1.4

Arduino 2.x

platform-espressif32	Arduino Core	based on ESP-IDF
6.8.1	2.0.17	4.4.7
6.8.0	2.0.17	4.4.7
6.7.0	2.0.16	4.4.7
6.6.0	2.0.14	4.4.6
6.5.0	2.0.14	4.4.6
6.4.0	2.0.11	4.4.5
6.3.2	2.0.9	4.4.4
6.3.1	2.0.9	4.4.4
6.3.0	2.0.9	4.4.4
6.2.0	2.0.8	4.4.4
6.1.0	2.0.7	4.4.4
6.0.1	2.0.6	4.4.3
6.0.0	2.0.6	4.4.3
5.4.0	2.0.6	4.4.3
5.3.0	2.0.6	4.4.3
5.2.0	2.0.5	4.4.2
5.1.1	2.0.4	4.4.1
5.1.0	2.0.4	4.4.1
5.0.0	2.0.3	4.4.1
4.4.0	2.0.3	4.4.1
4.3.0	2.0.3	4.4.1
4.2.0	2.0.2	4.4-beta1
4.1.0	2.0.1	4.4.0
4.0.0	2.0.0	4.4.0

Arduino 1.x

platform-espressif32	Arduino Core	based on ESP-IDF
3.5.0	1.0.6	3.3.5
3.4.0	1.0.6	3.3.5
3.3.2	1.0.6	3.3.5
3.3.1	1.0.6	3.3.5
3.3.0	1.0.6	3.3.5
3.2.1	1.0.6	3.3.5
3.2.0	1.0.6	3.3.5
3.1.1	1.0.5	3.3.0
3.1.0	1.0.5	3.3.0
3.0.0	1.0.5	3.3.0