Update connectors.md

docs/changelog/connectors.md

@@ -12,6 +12,22 @@ Note: Airbyte is not built on top of Singer, but is compatible with Singer's pro
 
 Check out our [connector roadmap](https://github.com/airbytehq/airbyte/projects/3) to see what we're currently working on
 
+## 04/20/2021
+
+3 new source connectors!
+* **[Zendesk Talk](https://docs.airbyte.io/integrations/sources/zendesk-talk)**
+* **[Iterable](https://docs.airbyte.io/integrations/sources/iterable)** 
+* **Quickbooks** (docs coming shortly)
+
+Other progress on connectors:
+* **Postgres source/destination**: add SSL option, thanks to [Marcos Marx](https://github.com/marcosmarxm) ([#2757](https://github.com/airbytehq/airbyte/pull/2757))
+* **Google sheets bugfix**: handle duplicate sheet headers, thanks to [Aneesh Makala](https://github.com/makalaaneesh) ([#2905](https://github.com/airbytehq/airbyte/pull/2905))
+* **Source Google Adwords**: support specifying the lookback window for conversions, thanks to [Harshith Mullapudi](https://github.com/harshithmullapudi) ([#2918](https://github.com/airbytehq/airbyte/pull/2918))
+* **MongoDB improvement**: speed up mongodb schema discovery, thanks to [Yury Koleda](https://github.com/FUT) ([#2851](https://github.com/airbytehq/airbyte/pull/2851))
+* **MySQL bugfix**: parsing Mysql jdbc params, thanks to [Vasily Safronov](https://github.com/gingeard) ([#2891](https://github.com/airbytehq/airbyte/pull/2891))
+* **CSV bugfix**: discovery takes too much memory ([#2089](https://github.com/airbytehq/airbyte/pull/2851))
+* A lot of work was done on improving the standard tests for the connectors, for better standardization and maintenance!
+
 ## 04/13/2021
 
 * New connector: **[Oracle DB](https://docs.airbyte.io/integrations/sources/oracle)**