chore: release 3.0.0 (#208)

🤖 I have created a release \*beep\* \*boop\* 
---
## [3.0.0](https://www.github.com/googleapis/python-spanner/compare/v2.1.0...v3.0.0) (2021-01-15)


### ⚠ BREAKING CHANGES

* convert operations pbs into Operation objects when listing operations (#186)

### Features

* add support for instance labels ([#193](https://www.github.com/googleapis/python-spanner/issues/193)) ([ed462b5](https://www.github.com/googleapis/python-spanner/commit/ed462b567a1a33f9105ffb37ba1218f379603614))
* add support for ssl credentials; add throttled field to UpdateDatabaseDdlMetadata ([#161](https://www.github.com/googleapis/python-spanner/issues/161)) ([2faf01b](https://www.github.com/googleapis/python-spanner/commit/2faf01b135360586ef27c66976646593fd85fd1e))
* adding missing docstrings for functions & classes  ([#188](https://www.github.com/googleapis/python-spanner/issues/188)) ([9788cf8](https://www.github.com/googleapis/python-spanner/commit/9788cf8678d882bd4ccf551f828050cbbb8c8f3a))
* autocommit sample ([#172](https://www.github.com/googleapis/python-spanner/issues/172)) ([4ef793c](https://www.github.com/googleapis/python-spanner/commit/4ef793c9cd5d6dec6e92faf159665e11d63762ad))


### Bug Fixes

* convert operations pbs into Operation objects when listing operations ([#186](https://www.github.com/googleapis/python-spanner/issues/186)) ([ed7152a](https://www.github.com/googleapis/python-spanner/commit/ed7152adc37290c63e59865265f36c593d9b8da3))
* Convert PBs in system test cleanup ([#199](https://www.github.com/googleapis/python-spanner/issues/199)) ([ede4343](https://www.github.com/googleapis/python-spanner/commit/ede4343e518780a4ab13ae83017480d7046464d6))
* **dbapi:** autocommit enabling fails if no transactions begun ([#177](https://www.github.com/googleapis/python-spanner/issues/177)) ([e981adb](https://www.github.com/googleapis/python-spanner/commit/e981adb3157bb06e4cb466ca81d74d85da976754))
* **dbapi:** executemany() hiding all the results except the last ([#181](https://www.github.com/googleapis/python-spanner/issues/181)) ([020dc17](https://www.github.com/googleapis/python-spanner/commit/020dc17c823dfb65bfaacace14d2c9f491c97e11))
* **dbapi:** Spanner protobuf changes causes KeyError's ([#206](https://www.github.com/googleapis/python-spanner/issues/206)) ([f1e21ed](https://www.github.com/googleapis/python-spanner/commit/f1e21edbf37aab93615fd415d61f829d2574916b))
* remove client side gRPC receive limits ([#192](https://www.github.com/googleapis/python-spanner/issues/192)) ([90effc4](https://www.github.com/googleapis/python-spanner/commit/90effc4d0f4780b7a7c466169f9fc1e45dab8e7f))
* Rename to fix "Mismatched region tag" check ([#201](https://www.github.com/googleapis/python-spanner/issues/201)) ([c000ec4](https://www.github.com/googleapis/python-spanner/commit/c000ec4d9b306baa0d5e9ed95f23c0273d9adf32))


### Documentation

* homogenize region tags ([#194](https://www.github.com/googleapis/python-spanner/issues/194)) ([1501022](https://www.github.com/googleapis/python-spanner/commit/1501022239dfa8c20290ca0e0cf6a36e9255732c))
* homogenize region tags pt 2 ([#202](https://www.github.com/googleapis/python-spanner/issues/202)) ([87789c9](https://www.github.com/googleapis/python-spanner/commit/87789c939990794bfd91f5300bedc449fd74bd7e))
* update CHANGELOG breaking change comment ([#180](https://www.github.com/googleapis/python-spanner/issues/180)) ([c7b3b9e](https://www.github.com/googleapis/python-spanner/commit/c7b3b9e4be29a199618be9d9ffa1d63a9d0f8de7))
---


This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).

CHANGELOG.md

@@ -4,6 +4,38 @@
 
 [1]: https://pypi.org/project/google-cloud-spanner/#history
 
+## [3.0.0](https://www.github.com/googleapis/python-spanner/compare/v2.1.0...v3.0.0) (2021-01-15)
+
+
+### ⚠ BREAKING CHANGES
+
+* convert operations pbs into Operation objects when listing operations (#186)
+
+### Features
+
+* add support for instance labels ([#193](https://www.github.com/googleapis/python-spanner/issues/193)) ([ed462b5](https://www.github.com/googleapis/python-spanner/commit/ed462b567a1a33f9105ffb37ba1218f379603614))
+* add support for ssl credentials; add throttled field to UpdateDatabaseDdlMetadata ([#161](https://www.github.com/googleapis/python-spanner/issues/161)) ([2faf01b](https://www.github.com/googleapis/python-spanner/commit/2faf01b135360586ef27c66976646593fd85fd1e))
+* adding missing docstrings for functions & classes  ([#188](https://www.github.com/googleapis/python-spanner/issues/188)) ([9788cf8](https://www.github.com/googleapis/python-spanner/commit/9788cf8678d882bd4ccf551f828050cbbb8c8f3a))
+* autocommit sample ([#172](https://www.github.com/googleapis/python-spanner/issues/172)) ([4ef793c](https://www.github.com/googleapis/python-spanner/commit/4ef793c9cd5d6dec6e92faf159665e11d63762ad))
+
+
+### Bug Fixes
+
+* convert operations pbs into Operation objects when listing operations ([#186](https://www.github.com/googleapis/python-spanner/issues/186)) ([ed7152a](https://www.github.com/googleapis/python-spanner/commit/ed7152adc37290c63e59865265f36c593d9b8da3))
+* Convert PBs in system test cleanup ([#199](https://www.github.com/googleapis/python-spanner/issues/199)) ([ede4343](https://www.github.com/googleapis/python-spanner/commit/ede4343e518780a4ab13ae83017480d7046464d6))
+* **dbapi:** autocommit enabling fails if no transactions begun ([#177](https://www.github.com/googleapis/python-spanner/issues/177)) ([e981adb](https://www.github.com/googleapis/python-spanner/commit/e981adb3157bb06e4cb466ca81d74d85da976754))
+* **dbapi:** executemany() hiding all the results except the last ([#181](https://www.github.com/googleapis/python-spanner/issues/181)) ([020dc17](https://www.github.com/googleapis/python-spanner/commit/020dc17c823dfb65bfaacace14d2c9f491c97e11))
+* **dbapi:** Spanner protobuf changes causes KeyError's ([#206](https://www.github.com/googleapis/python-spanner/issues/206)) ([f1e21ed](https://www.github.com/googleapis/python-spanner/commit/f1e21edbf37aab93615fd415d61f829d2574916b))
+* remove client side gRPC receive limits ([#192](https://www.github.com/googleapis/python-spanner/issues/192)) ([90effc4](https://www.github.com/googleapis/python-spanner/commit/90effc4d0f4780b7a7c466169f9fc1e45dab8e7f))
+* Rename to fix "Mismatched region tag" check ([#201](https://www.github.com/googleapis/python-spanner/issues/201)) ([c000ec4](https://www.github.com/googleapis/python-spanner/commit/c000ec4d9b306baa0d5e9ed95f23c0273d9adf32))
+
+
+### Documentation
+
+* homogenize region tags ([#194](https://www.github.com/googleapis/python-spanner/issues/194)) ([1501022](https://www.github.com/googleapis/python-spanner/commit/1501022239dfa8c20290ca0e0cf6a36e9255732c))
+* homogenize region tags pt 2 ([#202](https://www.github.com/googleapis/python-spanner/issues/202)) ([87789c9](https://www.github.com/googleapis/python-spanner/commit/87789c939990794bfd91f5300bedc449fd74bd7e))
+* update CHANGELOG breaking change comment ([#180](https://www.github.com/googleapis/python-spanner/issues/180)) ([c7b3b9e](https://www.github.com/googleapis/python-spanner/commit/c7b3b9e4be29a199618be9d9ffa1d63a9d0f8de7))
+
 ## [2.1.0](https://www.github.com/googleapis/python-spanner/compare/v2.0.0...v2.1.0) (2020-11-24)
 
 

setup.py

@@ -22,7 +22,7 @@
 
 name = "google-cloud-spanner"
 description = "Cloud Spanner API client library"
-version = "2.1.0"
+version = "3.0.0"
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'