Sony has released new firmware for a number of devices which adds the October 2020 Android security patches. The 2020 handsets that have been updated include the Xperia 1 II through build number 58.0.A.3.194 and the Xperia 10 II with build number 59.0.A.8.33. There does not appear to be any other big changes to these handsets, outside of the update in security patch.
2019 devices including the Xperia 1 and Xperia 5 have also seen the same security October 2020 patch through build number 55.1.A.9.127. Lastly, we have also seen an update for the Xperia XZ3 which has seen September 2020 security patches through build number 52.1.A.3.92.
If you have updated to these firmware builds and have any particular impressions, please feel free to chime in the comments below.
Recent Sony Xperia firmware updates
Xperia 1 II (Mark 2)
New update: 58.0.A.3.194 (Security patch: 1 October 2020)
Old update: 58.0.A.3.170 (Security patch: 1 September 2020)
Xperia 10 II (Mark 2)
New update: 59.0.A.8.33 (Security patch: 1 October 2020)
Old update: 59.0.A.8.21 (Security patch: 1 September 2020)
Xperia 1 / Xperia 5
New update: 55.1.A.9.127 (Security patch: 1 October 2020)
Old update: 55.1.A.9.101 (Security patch: 1 September 2020)
New update: 52.1.A.3.92 (Security patch: 1 September 2020)
Old update: 52.1.A.3.74 (Security patch: 1 August 2020)
Thanks Ahmad and Yat Choong Wan!