PBM-1419 Reworked supported versions matrix (#218)

PBM-1419 Reworked supported versions matrix

Split into separate ones for MongoDB and PSMDB
Added version 2.7.0 to each

modified:   docs/details/versions.md

docs/details/versions.md

@@ -2,27 +2,56 @@
 
 Percona Backup for MongoDB is compatible with:
 
-* MongoDB Community / Enterprise Edition  with [MongoDB Replication :octicons-link-external-16:](https://docs.mongodb.com/manual/replication/) enabled for logical backups.
-* Percona Server for MongoDB with [MongoDB Replication :octicons-link-external-16:](https://docs.mongodb.com/manual/replication/) for logical backups. For physical backups, also configure WiredTiger as the storage engine.
+* MongoDB Community / Enterprise Edition with [MongoDB Replication :octicons-link-external-16:](https://docs.mongodb.com/manual/replication/) enabled. Percona Backup for MongoDB supports only *logical backups*.
+* Percona Server for MongoDB for all [supported backup types](../features/backup-types.md). For logical backups, make sure [MongoDB Replication :octicons-link-external-16:](https://docs.mongodb.com/manual/replication/) is enabled. For physical and incremental backups, make sure WiredTiger is set as the storage engine.
 
-The following table provides information about the supported MongoDB versions for each PBM release. 
+Refer to the compatibility matrices below to check which MongoDB versions your current PBM release supports for backups and restores. 
 
 !!! note ""
 
-    End-of-life MongoDB versions may work with PBM, but they are not tested for compatibility. Consider using an previous PBM version in this case.
+    End-of-life MongoDB versions may work with PBM, but they are not tested for compatibility. Consider upgrading to the newer MongoDB or Percona Server for MongoDB version. 
 
+## Percona Server for MongoDB compatibility matrix
 
-| PBM version | MongoDB Community / Enterprise | Percona Server for MongoDB|Compatibility with previous PBM versions|
-| ----------- |------------------------------- | ------------------------- |----------------------------------------|
-| [2.6.0](../release-notes/2.6.0.md) | <ul><li>Logical backups: version 5.0.x and higher</li></ul> | <ul><li>Logical backups: version 5.0.x and higher</li><li>Physical backups: version 5.0.x, 6.0.x, 7.0.x</li><li>Incremental backups: version 5.0.14-12, 6.0.3-2 and higher, 7.0.x</li></ul> | Yes |
-| [2.5.0](../release-notes/2.5.0.md) | <ul><li>Logical backups: version 5.0.x and higher</li></ul> | <ul><li>Logical backups: version 5.0.x and higher</li><li>Physical backups: version 5.0.x, 6.0.x, 7.0.x</li><li>Incremental backups: version 5.0.14-12, 6.0.3-2 and higher, 7.0.x</li></ul> | Yes |
-| [2.4.0](../release-notes/2.4.0.md) | <ul><li>Logical backups: version 5.0.x and higher</li></ul> | <ul><li>Logical backups: version 5.0.x and higher</li><li>Physical backups: version 5.0.x, 6.0.x, 7.0.x</li><li>Incremental backups: version 5.0.14-12, 6.0.3-2 and higher, 7.0.x</li></ul>| Yes |
-| [2.3.0](../release-notes/2.3.0.md) | <ul><li>Logical backups: version 4.4 and higher</li></ul> | <ul><li>Logical backups: version 4.4 and higher</li><li>Physical backups - version 4.4.6-8 and higher, 5.0.x, 6.0.x</li><li>Incremental backups: versions 4.4.18, 5.0.14-12, 6.0.3-2 and higher</li></ul>| Yes |
-| [2.2.0](../release-notes/2.2.0.md) | <ul><li>Logical backups: version 4.4 and higher</li></ul> | <ul><li>Logical backups: version 4.4 and higher</li><li>Physical backups - version 4.4.6-8 and higher, 5.0.x, 6.0.x</li><li>Incremental backups: versions 4.4.18, 5.0.14-12, 6.0.3-2 and higher</li></ul>| Yes |
-| [2.1.0](../release-notes/2.1.0.md) | <ul><li>Logical backups: version 4.4 and higher</li></ul> | <ul><li>Logical backups: version 4.4 and higher</li><li>Physical backups - version 4.4.6-8, 5.0.x, 6.0.x</li><li>Incremental backups: version 4.2.24-24, 4.4.18, 5.0.14-12, 6.0.3-2 and higher</li></ul>| No. A fresh backup is required|
-| [1.7.0](../release-notes/1.7.0.md) | <ul><li>Logical backups: version 4.2 and higher</li></ul> | <ul><li>Logical backups: version 4.2 and higher</li><li>Physical backups (tech preview): version 4.2.15-16, 4.4.6-8, 5.0 and higher</li></ul> | Yes
-| [1.6.1](../release-notes/1.6.1.md) | <ul><li>Logical backups: version 3.6 and higher with [MongoDB Replication :octicons-link-external-16:](https://docs.mongodb.com/manual/replication/) enabled</li></ul> | <ul><li>Logical backups: version 3.6 and higher</li></ul>|Yes
+The following table lists the Percona Server for MongoDB versions supported for each backup type.
 
+Each entry indicates the PBM version that introduces changes in the supported Percona Server for MongoDB versions.
 
+The Restore compatibility column indicates if you can restore from the backup made with the previous version of PBM.
 
+| PBM version | Logical | Physical |Incremental physical | Restore backward compatibility|
+| ----------- |---------|----------|---------------------|---------------------|
+| **2.4.0 - 2.7.0** | [5.0.x], [6.0.x], [7.0.x] | [5.0.x], [6.0.x], [7.0.x] | [5.0.14-12], [6.0.3-2] and higher, [7.0.x] | Yes |
+| **2.2.0 - 2.3.0** | [4.4.x] and higher| [4.4.6-8] and higher, 5.0.x, 6.0.x| [4.4.18-18], [5.0.14-12], [6.0.3-2] and higher| Yes |
+| **2.1.0** | 4.4.x and higher | [4.4.6-8], [5.0.x], [6.0.x]| [4.2.24-24], [4.4.18-18], [5.0.14-12], [6.0.3-2] and higher| No. A fresh backup is required|
+| **1.7.0** | 4.2 and higher| tech preview: [4.2.15-16], [4.4.6-8], 5.0 and higher| | Yes
+| **1.6.1** | 3.6 and higher | N/A |N/A |N/A |Yes
+
+
+## MongoDB Community / Enterprise Edition compatibility matrix
+
+This table lists the supported MongoDB Community and Enterprise Edition versions for logical backups. Each entry indicates the new PBM version that introduces changes in the supported MongoDB versions. 
+
+The Restore compatibility column indicates if you can restore from the backup made with the previous version of PBM.
+
+| PBM version | Logical backups | Restore backward compatibility|
+| ----------- |-----------------| ----------------------------- |
+| **2.4.0 - 2.7.0** | 5.0.x and higher | Yes |
+| **2.2.0 - 2.3.0** | 4.4.x and higher | Yes |
+| **2.1.0** | 4.4.x and higher| No. A fresh backup is required|
+| **1.7.0** | 4.2 and higher| Yes
+| **1.6.1** | 3.6 and higher|Yes
+
+
+
+[7.0.x]: https://docs.percona.com/percona-server-for-mongodb/7.0/
+[6.0.x]: https://docs.percona.com/percona-server-for-mongodb/6.0/
+[6.0.3-2]: https://docs.percona.com/percona-server-for-mongodb/6.0/release_notes/6.0.3-2.html
+[5.0.x]: https://docs.percona.com/percona-server-for-mongodb/5.0/
+[5.0.14-12]: https://docs.percona.com/percona-server-for-mongodb/5.0/release_notes/5.0.14-12.html
+[4.4.x]: https://docs.percona.com/percona-server-for-mongodb/4.4/
+[4.4.18-18]: https://docs.percona.com/percona-server-for-mongodb/4.4/release_notes/4.4.18-18.html
+[4.4.6-8]: https://docs.percona.com/percona-server-for-mongodb/4.4/release_notes/4.4.6-8.html
+[4.2.24-24]: https://docs.percona.com/percona-server-for-mongodb/4.2/release_notes/4.2.24-24.html
+[4.2.15-16]: https://docs.percona.com/percona-server-for-mongodb/4.2/release_notes/4.2.15-16.html