update: add v26 and v27 to bootstrap template reference table

Author: evzzk

v2/bootstrapping-env.md

@@ -266,6 +266,8 @@ This section contains a list of the changes made in each version\.
 | 23 | 2\.161\.0 | Add cloudformation:RollbackStack and cloudformation:ContinueUpdateRollback permissions to the trust policy of the deploy IAM role\. This provides permissions for the cdk rollback command\. | 
 | 24 | 2\.165\.0 | Change the duration of days that noncurrent objects in the bootstrap bucket will be retained, from 365 to 30 days\. Since the new cdk gc command introduces the ability to delete objects in the bootstrap bucket, this new behavior ensures that deleted objects remain in the bootstrap bucket for 30 days instead of 365 days\. For more information on this change, see aws\-cdk PR [\#31949](https://github.com/aws/aws-cdk/pull/31949)\. | 
 | 25 | 2\.165\.0 | Add support to the bootstrap bucket for the removal of incomplete multipart uploads\. Incomplete multipart uploads will be deleted after 1 day\. For more information on this change, see aws\-cdk PR [\#31956](https://github.com/aws/aws-cdk/pull/31956)\. | 
+| 26 | 2\.1002\.0 | Add two deletion\-related policies \(UpdateReplacePolicy and DeletionPolicy to the FileAssetsBucketEncryptionKey\) resource\. These policies ensure that the old AWS KMS key resource will be properly deleted when the bootstrap stack is updated or deleted\. For more information on this change, see aws\-cdk\-cli PR [\#100](https://github.com/aws/aws-cdk-cli/pull/100)\. | 
+| 27 | 2\.1003\.0 | Add new Amazon ECR resource policy to grant Amazon EMR Serverless specific permissions for retrieving container images\. For more information on this change, see aws\-cdk\-cli PR [\#112](https://github.com/aws/aws-cdk-cli/pull/112)\. | 
 
 ## Upgrade from legacy to modern bootstrap template<a name="bootstrapping-template"></a>
 

v2/doc-history.md

@@ -7,6 +7,7 @@ The table below represents significant documentation milestones\. We fix errors
 
 | Change | Description | Date | 
 | --- |--- |--- |
+| [Document bootstrap template versions v26 and v27](#doc-history) | For more information, see [Bootstrap template version history](https://docs.aws.amazon.com/cdk/v2/guide/bootstrapping-env.html#bootstrap-template-history)\. | March 27, 2025 | 
 | [Add documentation for building and deploying container image assets](#doc-history) | When you build container image assets with the AWS CDK, Docker is utilized by default to perform these actions\. If you want to use a different container management tool, you can replace Docker\. For more information, see [Build and deploy container image assets in CDK apps](https://docs.aws.amazon.com/cdk/v2/guide/build-containers.html)\. | March 21, 2025 | 
 | [Add documentation for CDK Migrate feature](#doc-history) | Use the AWS CDK CLI `cdk migrate` command to migrate deployed AWS resources, deployed AWS CloudFormation stacks, and local AWS CloudFormation templates to AWS CDK\. For more information, see [Migrate to AWS CDK](https://docs.aws.amazon.com/cdk/v2/guide/migrate.html)\.  | February 2, 2024 | 
 | [IAM best practices updates](#doc-history) | Updated guide to align with the IAM best practices\. For more information, see [Security best practices in IAM](https://docs.aws.amazon.com/IAM/latest/UserGuide/best-practices.html)\. | March 23, 2023 |