What's Changed

New features

Hypervisor extension integration by Andres Amaya Garcia (@andresag01) in #236
Introduce a Load Mutable permission by Alexander Richardson (@arichardson) in #212
Introduce GCTYPE to obtain the capability type by Alexander Richardson (@arichardson) in #337
Allow alternative capability encodings by Andres Amaya Garcia (@andresag01) in #357
Control access to Zstid CSRs by Andres Amaya Garcia (@andresag01) in #358
Integrating vector and CHERI for RISC-V by Andres Amaya Garcia (@andresag01) in #365
PTE proposal with load-side barrier bits by Andres Amaya Garcia (@andresag01) in #234
add auipc note by Tariq Kurd (@tariqkurd-repo) in #390
Introduce capability levels by Alexander Richardson (@arichardson) in #355

Make CRE not a WARL field by Tim Hutt (@Timmmm) in #332
Re-instate GCMODE instruction by Andres Amaya Garcia (@andresag01) in #350
Allow XLEN writes to new CSRs in Zcherihybrid by Andres Amaya Garcia (@andresag01) in #354
Permute permissions bitmap for acperm/gcperm by Andres Amaya Garcia (@andresag01) in #351
controlling the cheri mode to enter when entering debug mode by Tariq Kurd (@tariqkurd-repo) in #370
add extra information into exception reporting by Tariq Kurd (@tariqkurd-repo) in #373
Swap roles of xtval and xtval2 by Andres Amaya Garcia (@andresag01) in #379
Miscellaneous fixes for gctype and scss by Andres Amaya Garcia (@andresag01) in #383
unify 32-bit encodings for load/store/amo to use RV64 versions by Tariq Kurd (@tariqkurd-repo) in #385
optionally simplify lm_perm by Tariq Kurd (@tariqkurd-repo) in #387
split MODESW into MODESW.CAP and MODESW.INT by Tariq Kurd (@tariqkurd-repo) in #406

Clarified the "malformed capabilities" definition by Jason Yu (@jasonyu1996) in #320
Reword the ASR description to clarify Zstid register behaviour. by Paul Buxton (@buxtonpaul) in #335
Clarify legalisation of dpcc by Tom Aird (@tomaird) in #345
Clarify sealed mepcc behaviour by PRugg-Cap in #347
Add extension maturity table by Tariq Kurd (@tariqkurd-repo) in #369
Indicate GCMODE output for non-X caps by Andres Amaya Garcia (@andresag01) in #377
pointer masking support by Tariq Kurd (@tariqkurd-repo) in #368
Clarify rs2 values for scmode by Andres Amaya Garcia (@andresag01) in #382
add note about choosing when to check the tag on a load by Tariq Kurd (@tariqkurd-repo) in #381
Add a quick-start guide by PeterRugg in #404
attempt at listing some system rules with examples by Tariq Kurd (@tariqkurd-repo) in #401
Chapter 3 note about the relationship between privileged and unprivileged components by Jason Yu (@jasonyu1996) in #321

Fix typo. by Paul Buxton (@buxtonpaul) in #330
hybrid: fix a sentence that uses the old definition of M by Martin Kaiser (@martin-kaiser) in #336
Miscellaneous wording and typo fixes by Andres Amaya Garcia (@andresag01) in #346
Delete incorrect note in atomic store operation by Alexander Richardson (@arichardson) in #348
Do not include CHERIv9 annotations by default by Andres Amaya Garcia (@andresag01) in #364
Use "bounds" violation instead of "length" by Alexander Richardson (@arichardson) in #367
Miscellaneous fixes by Andres Amaya Garcia (@andresag01) in #371
Fix typo in debug integration spec by Andres Amaya Garcia (@andresag01) in #378
Rename insn access fault to fetch fault by Andres Amaya Garcia (@andresag01) in #380
remove false comments from RV32 permission encoding table by Tariq Kurd (@tariqkurd-repo) in #386
Align authors and contributor lists by Andres Amaya Garcia (@andresag01) in #388
Organize tables into appendix by Andres Amaya Garcia (@andresag01) in #394
Changing c.mv mnemonic font to be red monospace by ricki-code in #397
Remove redundant c.addi4spn link by Tom Aird (@tomaird) in #399
Make FP reg operand notation consistent by Andres Amaya Garcia (@andresag01) in #398
Add table and notes about CRE by Andres Amaya Garcia (@andresag01) in #396
Remove outdated 'leg' specifier by Tom Aird (@tomaird) in #405

Full Changelog: v0.8.3-prerelease...v0.9.0-prerelease