22.0.0: Difference between revisions

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The Switch 22.0.0 system update was released on March 17, 2026 (UTC). This Switch update was released for the following regions: ALL.
The Switch 22.0.0 system update was released on March 17, 2026 (UTC). This Switch update was released for the following regions: ALL.


Security flaws fixed: <fill this in manually>.
Security flaws fixed: yes.
 
As of roughly March 31 - April 2, 2026 (UTC), this sysupdate is now required by dauth.  


==Change-log==
==Change-log==
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A new NSO compression method was introduced.
A new NSO compression method was introduced.


This appears to be a slightly customized variant of zstd and is used when NSO [[NSO0#Flags|flags]] have bit 7 set.
This is a customized variant of zstd and is used when NSO [[NSO0#Flags|flags]] have bit 7 set.
* ZSTD_MAGICNUMBER is set to 0x5A424943 (b'ZBIC') instead of standard 0xFD2FB528
* ZSTD_MAGICNUMBER is set to 0x4349425A (b'ZBIC') instead of standard 0xFD2FB528
* ZSTD_LEGACY_SUPPORT is set to 0
* ZSTD_LEGACY_SUPPORT is set to 0
* otherwise the code seems to match zstd version ~1.6.0
* ZSTD_TRACE is set to 1, the version of zstd used is 1.5.7 (ZSTD_VERSION_NUMBER = 10507)
* FSE_readNCount is replaced with a BIC (Binary Interpolative Coding) version which improves compression of entropy tables significantly


=== [[NFC_services|nfc]] ===
=== [[NFC_services|nfc]] ===