multi: add v1.2.0 release notes.

This adds  v1.2.0 release notes and updates
the app version.

docs/release-notes/release-notes-1.2.0.md

@@ -0,0 +1,40 @@
+## Breaking Changes.
+1. `--cpuport`, `--d9port`, `--dr3port`,`--dr5port`,`--d1port` and `--dcr1port` have been removed in favour of `--minerport` ([#274](https://github.com/decred/dcrpool/pull/274)).
+
+2. `--homedir` has been renamed to `--appdata` in order to be consistent wih dcrd and dcrwallet ([#312](https://github.com/decred/dcrpool/pull/312)).
+
+## Bug Fixes.
+1. Payment processing now handles dust payments by filtering them out of transactions generated by the pool. ([#254](https://github.com/decred/dcrpool/pull/254))
+
+2. Fixed a solo pool work submission related bug where valid submissions less than the pool target were being rejected. ([#286](https://github.com/decred/dcrpool/pull/286))
+
+3. Fixed a gui related bug where the gui would fail to update because the cache was not being properly updated on block connections. ([#297](https://github.com/decred/dcrpool/pull/297))
+
+4. Fixed a cpu miner related bug where the authorization request was being sent regardless of the state of the subscribtion request. ([#297](https://github.com/decred/dcrpool/pull/297))
+
+5. Fixed a bug related to marshaling and unmarshaling stratum errors. ([#304](https://github.com/decred/dcrpool/pull/304))
+
+
+## Improvements.
+
+1. Error types have been updated to leverage go 1.13 errors.Is/As functionality. ([#245](https://github.com/decred/dcrpool/pull/245))
+
+2. `--conftimeout` has been added to control coinbase confirmation durations when sourcing payment transaction inputs. ([#250](https://github.com/decred/dcrpool/pull/250))
+
+3. Added postgres support to facilitate multi-instance deployments. ([#282](https://github.com/decred/dcrpool/pull/282))
+
+4. A single miner endpoint configurable via `--minerport` has been added to simplify the connection process. ([#274](https://github.com/decred/dcrpool/pull/274))
+
+5. `--monitorcycle` and `--maxupgradetries` have been added to allow miner monitoring and upgrade cycles. ([#274](https://github.com/decred/dcrpool/pull/274))
+
+6. Client hash data is now persisted to ensure coherent and unifom data access for multi-instance deployments. ([#293](https://github.com/decred/dcrpool/pull/293))
+
+7. Facilitate reverse proxy deployments by allowing serving the pool over HTTP and allowing further endpoint configurability by updating `--minerport` and `--guiport` to `--minerlisten` and `--guilisten`. ([#301](https://github.com/decred/dcrpool/pull/301))
+
+8. The pool now properly handles `mining.extranonce.subscribe` requests by explicitly stating no support for it. ([#304](https://github.com/decred/dcrpool/pull/304))
+
+
+## Code Contributors (alphabetical order):
+- David Hill
+- Donald Adu-Poku
+- Jamie Holdstock

version.go

@@ -25,7 +25,7 @@ const (
 // versioning 2.0.0 spec (http://semver.org/).
 const (
 	appMajor uint = 1
-	appMinor uint = 1
+	appMinor uint = 2
 	appPatch uint = 0
 )