> ## Documentation Index > Fetch the complete documentation index at: https://docs.aseeflow.org/llms.txt > Use this file to discover all available pages before exploring further. # 1.0 to 1.1 In order to update existing CMMN 1.0 XMLs to valid CMMN 1.1 the following adjustments must be done. * The namespace must be updated as follows:
Affected Elements Definitions
CMMN 1.0 \
CMMN 1.1 \
* The `` element from expressions must be removed:
Affected Elements Condition
CMMN 1.0 \
   \\$\{any-expression}\
\
CMMN 1.1 \\$\{any-expression}\
This is relevant for all elements containing a condition like `IfPart`, `ManualActivationRule` and `RequiredRule` * The attributes `entryCriteriaRefs` and `exitCriteriaRefs` are dropped, so that the following adjustments must be done:
Affected Elements PlanItem, CasePlanModel
CMMN 1.0 \
       entryCriteriaRefs="Sentry\_1 Sentry\_2"
       exitCriteriaRefs="Sentry\_3 Sentry4" />
CMMN 1.1 \
   \
   \
   \
   \
\
* The attribute `description` is not available anymore. Instead of the `description` attribute use the `` element:
Affected Elements Any CMMN element
CMMN 1.0 \
       description="This is a description of the plan item..." />
CMMN 1.1 \
   \
       This is a description of the plan item...
   \
\