Merge pull request #1095 from gyliu513/update-operators

docs: Corrected CSV upgrade version.

Author: openshift-merge-robot

doc/design/how-to-update-operators.md

@@ -40,7 +40,7 @@ defaultChannel: alpha
 
 ## Upgrade Path
 
-Given the upgrade scenario, there is an installed operator corresponding to CSV version `0.1.1`. OLM queries `CatalogSource` and detects an upgrade in the subscribed channel with new CSV version `0.1.3` that is replacing an older but not-installed CSV version `0.1.2` which in turn replaces older but installed CSV version `0.1.1`. OLM will walk back from channel head to previous versions via `replaces` field specified in CSVs to determine the upgrade path: `0.1.3` -> `0.1.12` -> `0.1.1` (the direction of arrow indicates the former is replacing the latter). OLM will upgrade operator one version at the time until it reaches the channel head. For this given scenario, OLM will install operator version `0.1.2` to replace existing operator version `0.1.1`. Then, install operator version `0.1.3` to replace previously-installed operator version `0.1.2`. At this point, the installed operator version `0.1.3` matches the channel head and the upgrade is completed.
+Given the upgrade scenario, there is an installed operator corresponding to CSV version `0.1.1`. OLM queries `CatalogSource` and detects an upgrade in the subscribed channel with new CSV version `0.1.3` that is replacing an older but not-installed CSV version `0.1.2` which in turn replaces older but installed CSV version `0.1.1`. OLM will walk back from channel head to previous versions via `replaces` field specified in CSVs to determine the upgrade path: `0.1.3` -> `0.1.2` -> `0.1.1` (the direction of arrow indicates the former is replacing the latter). OLM will upgrade operator one version at the time until it reaches the channel head. For this given scenario, OLM will install operator version `0.1.2` to replace existing operator version `0.1.1`. Then, install operator version `0.1.3` to replace previously-installed operator version `0.1.2`. At this point, the installed operator version `0.1.3` matches the channel head and the upgrade is completed.
 
 ## Catalog Invariant