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chore: CHANGELOG for v0.13.0
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doitian committed Jun 1, 2019
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All notable changes to this project will be documented in this file.
See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.

# [v0.13.0](https://github.com/nervosnetwork/ckb/compare/v0.12.2...v0.13.0) (2019-06-01) rylai-v2

### Features

* #762: Live cell block hash (@keroro520)

This is a breaking change: b:rpc

* Return `block_hash` for `get_cells_by_lock_hash`
* Add `make gen-doc` command

* #841: Apply `tx_pool` limit (@zhangsoledad)

This is a breaking change: b:cli, b:rpc

1. apply `tx_pool` limit
2. tx size verify, enforce tx size below block size limit

**BREAKING CHANGES:**

**config** `ckb.toml`

```diff
[tx_pool]
- max_pool_size = 10000
- max_orphan_size = 10000
- max_proposal_size = 10000
- max_cache_size = 1000
- max_pending_size = 10000
- txs_verify_cache_size = 100000
+ max_mem_size = 20_000_000 # 20mb
+ max_cycles = 200_000_000_000
+ max_verfify_cache_size = 100_000
```

**rpc** `tx_pool_info`

```diff
+ "total_tx_cycles": "2",
+ "total_tx_size": "156",
```

* #890: Revise remainder reward rule (@zhangsoledad)

This is a breaking change: b:consensus

* #876: Tweak consensus params (@zhangsoledad)

This is a breaking change: b:consensus

* #889: Add codename in version (@doitian)
* #854: Calculate median time by tracing parents (@keroro520)

At present, the way calculating the passed median time is that collects block timestamps one by one by block_number. This PR change to collects blocks timestamps by tracing parents. The new way is more robust.

In addition to this, I use assert-style to rewrite the calculation of passed median time.

* #859: Use snappy to compress large messages (@driftluo)

This is a breaking change: b:p2p

On the test net monitoring, the bandwidth usage is often in a full state. We try to use the snappy compression algorithm to reduce network transmission consumption.

After testing, the compression yield of flatbuffer format is very high, cpu consumption is relatively acceptable.

The following is the data transmission on the test net:

```
2019-05-20 16:27:41.875 +08:00 tokio-runtime-worker-7 DEBUG compress raw_data len: 625400, compress used time: 3.635121ms, compress_data size: 335401, compression ratio: 0.536298369043812, decompress used time: 1.496667ms
2019-05-20 16:27:42.128 +08:00 tokio-runtime-worker-6 DEBUG compress raw_data len: 633544, compress used time: 3.789752ms, compress_data size: 335462, compression ratio: 0.5295007134468955, decompress used time: 1.490144ms
2019-05-20 16:27:42.340 +08:00 tokio-runtime-worker-6 DEBUG compress raw_data len: 633216, compress used time: 3.998678ms, compress_data size: 333458, compression ratio: 0.5266101930462906, decompress used time: 1.593165ms
2019-05-20 16:27:42.558 +08:00 tokio-runtime-worker-5 DEBUG compress raw_data len: 632992, compress used time: 3.453616ms, compress_data size: 333552, compression ratio: 0.5269450482786512, decompress used time: 1.052606ms
2019-05-20 16:27:42.740 +08:00 tokio-runtime-worker-2 DEBUG compress raw_data len: 633760, compress used time: 1.256847ms, compress_data size: 340022, compression ratio: 0.5365154001514769, decompress used time: 545.473µs
2019-05-20 16:37:43.934 +08:00 tokio-runtime-worker-1 DEBUG compress raw_data len: 186912, compress used time: 659.317µs, compress_data size: 42640, compression ratio: 0.22812874507789763, decompress used time: 515.287µs
2019-05-20 16:37:47.338 +08:00 tokio-runtime-worker-3 DEBUG compress raw_data len: 186520, compress used time: 189.079µs, compress_data size: 42334, compression ratio: 0.22696761741368218, decompress used time: 150.644µs
2019-05-20 16:37:50.729 +08:00 tokio-runtime-worker-3 DEBUG compress raw_data len: 186520, compress used time: 197.656µs, compress_data size: 42336, compression ratio: 0.22697834012438345, decompress used time: 145.5µs
2019-05-20 16:38:52.549 +08:00 tokio-runtime-worker-4 DEBUG compress raw_data len: 95904, compress used time: 217.968µs, compress_data size: 33801, compression ratio: 0.3524461961961962, decompress used time: 95.818µs
2019-05-20 16:39:32.522 +08:00 tokio-runtime-worker-0 DEBUG compress raw_data len: 47320, compress used time: 418.183µs, compress_data size: 17183, compression ratio: 0.363123415046492, decompress used time: 252.148µs
```

Note that this is a **break change**, the data is modified as follows:

By default, data above 40k enters compressed mode.

From the current point of view, the high bit 1 is the compressed format and the high bit 0 is the uncompressed format.

If you want to support multiple compression formats in the future, you can simply think that 0b1000 is in snappy format and 0b0000 is in uncompressed format.

```
# Message in Bytes:

+---------------------------------------------------------------+
| Bytes | Type | Function |
|-------+------+------------------------------------------------|
| 0 | u1 | Compress: true 1, false 0 |
| | u7 | Reserved |
+-------+------+------------------------------------------------+
| 1~ | | Payload (Serialized Data with Compress) |
+-------+------+------------------------------------------------+
```

* #921: Upgrade CKB VM to latest version (@xxuejie)

This upgrade contains the following changes:

Refactors

* nervosnetwork/ckb-vm#57 calculate address first before cond operation @xxuejie

Bug fixes

* nervosnetwork/ckb-vm#60 fix broken bench tests @mohanson
* nervosnetwork/ckb-vm#61 VM panics when ELF uses invalid file offset @xxuejie
* nervosnetwork/ckb-vm#63 out of bound read check in assembly VM

Chore

* nervosnetwork/ckb-vm#59 fix a bad way to using machine @mohanson
* nervosnetwork/ckb-vm#61 add an example named is13 @mohanson


### Bug Fixes

* #812: Prof should respect script config (@xxuejie)
* #810: Discard invalid orphan blocks (@keroro520)

When accepts a new block, its descendants should be accepted too if valid. So if an error occurs when we try to accept its descendants, the descendants are invalid.

* #850: Ensure EBREAK has proper cycle set (@xxuejie)

This is a breaking change: b:consensus

This is a bug reported by @yangby-cryptape. Right now we didn't assign proper cycles for EBREAK, which might lead to potential bugs.

* #886: Integration test cycle calc (@zhangsoledad)
* fix: Cuckoo cycle verification bug (@yangby-cryptape)

### Improvements

* #832: `peer_store` db::PeerInfoDB interface (@jjyr)


# [v0.12.2](https://github.com/nervosnetwork/ckb/compare/v0.12.1...v0.12.2) (2019-05-20)

### Features
Expand Down Expand Up @@ -42,7 +184,7 @@ See [Conventional Commits](https://conventionalcommits.org) for commit guideline
- bind rpc on 0.0.0.0 in docker
- fix docker files permissions

# [v0.12.0](https://github.com/nervosnetwork/ckb/compare/v0.11.0...v0.12.0) (2019-05-18) rylai
# [v0.12.0](https://github.com/nervosnetwork/ckb/compare/v0.11.0...v0.12.0) (2019-05-18) rylai-v1

### Features

Expand Down

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