Release v1.2 Announcement

We're announcing the new release v1.2.0

Hi all,

We're announcing the new release v1.2.0. Release diem-core-v1.2.0 will be deployed to Diem Testnet on 04/28/2021, and the diem-framework-v1.2.0 will be enabled on 04/29/2021.

Feel free to post your questions in this discussion thread.

diem-core-v1.2.0

Full changelog since diem-core-v1.1.0

Noticeable changes

Fixed bugs:

• [Bug] Broken image in storage README #6934
• [Bug] json-rpc method call get_account_state_with_proof returns server internal error when given an old version #6872
• [Bug] Documentation for rotate keys is wrongly using Public Key where it should be Authentication Key #7702
• [mempool] Perf regression with CT burst mode #7577
• [Bug] account can't send any txn if its balance is less than 600 #7238
• [Bug] The url is missing in the sample code curl #6887
• [Bug] "Unable to get currency info for Coin1 when converting to on-chain" #7368

Notable changes:

[Build]

• [rust] upgrade to rust 1.51 #8017

[Consensus]

• [consensus] Add reputation window proposals/vote metrics #7758
• [consensus] avoid mempool long poll if root block has user txns #7182

[Diem Framework]

• [diem framework] Limit the number of validators in the network to 256 or less #6952
• [language] follow up to latest prologue/epilogue changes #7063
• [diem-types] Update currency code restrictions now that we have the real codes. #7252
• [diem framework] make script allowlist immutable #7556
• [diem framework] Add support for concurrent preburns to the DF #7648
• [diem framework] delete tiered minting logic #7920
• [diem framework] Increase max number of child accounts to 2^16 form 2^8 #6955
• [diem framework] introduce diem-framework-releases #8028
• [diem framework] Add gas constant setters #8080

[JSON RPC]

• [json-rpc] Update failing integration test by increasing timeout. #6942
• [json-rpc] Add preburn_queues field to DesignatedDealer view #7852
• [json-rpc] Adding a get_events_with_proof API #6539
• [json-rpc] allow no params field in JSON-RPC API call request #7275
• [json-rpc] fixing race in test with batch call #7001
• [json-rpc] health-check for checking latest ledger info timestamp #7419
• [json-rpc] Support TLS on JSON-RPC port #7297
• [secure] Include Move abort code explanation in the VMStatusView #7123

[Logging]

• crash-handler: wait till logs have been flushed to exit #7378
• [diem-trace] restore previous behavior of set_diem_trace #7667
• [logging] Add documentation to all structs and macros #7707

[Mempool]

• [mempool] Add ConnectionMetadata to PeerSyncState #7637
• [mempool] Add in configurable upstream failovers #7858
• [mempool] Add SharedMempool GCing for non-validator peers #7687
• [mempool] Give ordering to upstream peers #7809
• [mempool] Remove legacy failover logic #7690
• [mempool] return accepted for submitting same transaction in mempool #7174
• [mempool] Split up test bootstrap network #7765
• [mempool] Use proper NodeConfig defaults for node types #7689

[Move]

• Updated to version 1.2 of Move: see the Move release notes for details
• With Diem Framework version 2, transaction scripts take an owned signer instead of a &signer reference. When the on-chain Diem Framework version is set to 1, the VM still expects a signer reference #8029

[Network]

• [network] Prioritize Peer connections and remove 2nd Public network interface #7927
• [network] Allow Conn Manager to be used with Public interfaces #7925
• [network] Decrease network allowed rate limits #7177
• [network] Metric if network identity doesn't match onchain #7217
• [rate-limiter] Allow for disabling throttle in config #7176
• [config] Make rate limiter optional for Validators #6941
• [diem-node] Remove shutdown method after fixing network panic #7231

[SDK]

• sdk: introduce a new diem-client intended to be apart of the rust-sdk #7420
• add CoinTradeMetadata #7582
• Add constructor and getters for GeneralMetadataV0 as inner fields are private #7039
• add RefundMetadata struct for generating types #7502

[State Sync]

• [State Sync] Fix potential storage race condition with consensus. #7365
• [State Sync] Make inter-component communication timeouts configurable. #7657
• [State Sync] Remove unneccessary panics to avoid DOS attacks. #7778
• [State Sync] Small cleanups, renames and refactors. #7017
• [State Sync] Update state sync to prioritize preferred peers. #7902
• [State Sync] Perform basic chunk request verification before processing. #7520
• [State Sync] Use checked arithmetic operations to avoid over/under-flows #7065
• [State Sync] Use optimistic fetch for both waypoint and verifiable chunk processing. #7595
• [state-sync] removing integer overflow #7060

[Storage]

• [backup] metadata cache defaults to temp dir #7940
• [backup] support for specifying trusted waypoints in restore / verify #7329
• [diemdb_bench] initial_commit #7407
• [storage] expose RbReader::get_last_version_before_timestamp() #7740
• [storage] smaller prune_window #7197
• [Proof] Make SparseMerkleProof generic #7363

[TCB]

• [safety-rules] cleaning #7680
• [safety-rules] removing redundant safety data update #7684
• [Secure Storage] Reduce default timeouts for vault and support custom op tooling timeouts. #7743
• [Secure Storage] Update vault request timeout and error handling. #7193
• [Secure Storage] Vault timeout workaround due to ureq bug. #7828
• [secure-storage] support github branches #7150
• [tcb][safety_rules] added state machine specification #7842
• [Vault Storage] Make the vault client support configurable timeout values #7675