Changelog

Current Version: v2.27.9

This changelog covers what has changed in the WhatsApp Business API client and AWS Templates.

Contents

• Recommended Versions of Software
• WhatsApp Business API Client
• Amazon Web Services Templates
• Known Issues

Recommended Versions of Software

WhatsApp Business API Client

Blocking updates are ones in which the Coreapp will suffer downtime while upgrading using the db-upgrade service. Non-blocking updates are ones in which the Coreapp should continue to run when upgrading using the db-upgrade service. You can only use the db-upgrade service to upgrade to a version >= 2.23.* from your current version.

Mar 4, 2020 (v2.27.9)

• Fixes a potential database upgrade issue when upgrading to 2.27.8

Jan 29, 2020 (v2.27.8)

• Sticker support is added
  • Send/receive stickers as a message
  • Download Whatsapp stickers and generate/manage third-party stickers
• Bypass the cache when checking contacts using the force_check parameter
• For a /v1/contacts API call in async mode, the results can be posted to the callback server without having to poll the check contacts status
• [Deprecated] The fallback language policy is deprecated for sending message templates
• [Deprecated] Ability to send message templates from a different namespace is deprecated
• Message templates hydration logic moved from the consumer app client to the WhatsApp Business API client
• Ability to close idle MYSQL DB connections using WA_DB_CONNECTION_IDLE_TIMEOUT (in seconds)

Jan 6, 2020 (v2.25.5)

• [Bug fix] Issues related to memory leaks identified in previous versions of 2.25.x are resolved
• [Bug fix] Previewing URLs are crashing Coreapp intermittently

Nov 13, 2019 (v2.25.4)

• [Bug fix] Video preview thumbnails are not correctly generated on the receivers phone client
• [Bug fix] Too many database connections issue
• [Bug fix] Video duration generation

Oct 7, 2019 (v2.25.3)

• Throughput for outbound text type messages is improved to 50 messages/second
• Improved efforts to show URL preview
• Improved error handling when preview URL is invalid or not supported
• [Bug fix] Mark messages as read in Postgres
• [Bug fix] Previously, photos larger than 63 KB were encoded. This limit is now increased to 5 MB, enabling original high quality pictures to be sent as they are.
• [Bug fix] Fixed security vulnerabilities for CVE-2019-11931 and CVE-2019-14835

Sep 9, 2019 (v2.25.2, v2.23.6)

• Improvements to Coreapp security

Aug 26, 2019 (v2.25.1)

• Throughput for outbound media type messages is improved to 18 messages/second
• Throughput for outbound text type messages is improved to 25 messages/second
• Throughput for inbound text type messages is improved to 100 messages/second for single instance
• “Non-secure http” Webhooks are deprecated — Please upgrade Webhooks to https for inbound notifications
• A long lived authentication token is available for health API calls to help monitor multiple deployments of WhatsApp Business API clients
  • The number of requests (rate limits) for the health endpoint is set to 10 per second
• Business vertical values to be enumerable rather than free-form text
• [Bug fix] Propagating mime-types correctly to address inbound media issues
• [Bug fix] Mark message read request in multiconnect mode should be distributed uniformly to all the shards rather than sending to shard 0 alone
• AWS cloud formation template is made publicly available from S3, removing manual step of requesting access via Direct Support

Security Advisory

The following security vulnerabilities impact the v2.25.1 Coreapp image. The next patch release will include fixes.

• CVE-2018-20856: A patch release will include the fix when published by the vendor for Ubuntu 16.04

Amazon Web Services Templates

Current Version: 2.3.5

What's included in the Amazon Web Services (AWS) - Cloud Formation (CFN) templates:

Release 2.3.5

Template URLs

• Enterprise: https://wa-biz-cfn.s3-us-west-2.amazonaws.com/wa_ent.yml?versionId=xyE_FkWE5FyYIiXozixCiwJ7qEBFHJD_
• DB: https://wa-biz-cfn.s3-us-west-2.amazonaws.com/wa_ent_db.yml?versionId=6S64vuEJuIUYgcKMakIUVsBnYVLe8FlZ
• Lambda: https://wa-biz-cfn.s3-us-west-2.amazonaws.com/wa_ent_lambda.yml?versionId=ORGseStC38YfQnnbUDp0aAu2hgva1mvt
• Network: https://wa-biz-cfn.s3-us-west-2.amazonaws.com/wa_ent_net.yml?versionId=jIAQAZ0h7Mr6zGPDX0Du_2TxRvov27Bv

Dependencies/Prerequisites

N/A

Changelog

• Support configurable RDS parameters: storage type, multi-AZ, IOPS, engine version
• Support Mumbai region
• Add support for M5 level EC2 instances and M5 level DB instance class
• Support configurable EBS volume size

Release 2.3.4

Template URLs

• Enterprise: https://wa-biz-cfn.s3-us-west-2.amazonaws.com/wa_ent.yml?versionId=tZ1laU2RSC7r3bXJpBb8GvTKSZtTjcor
• DB: https://wa-biz-cfn.s3-us-west-2.amazonaws.com/wa_ent_db.yml?versionId=AnGlHzLonTRUbARyCxqO.WNaMs0igmRD
• Lambda: https://wa-biz-cfn.s3-us-west-2.amazonaws.com/wa_ent_lambda.yml?versionId=mzhd2_Rl8H8_hzX2z0RQNRWfILb78Pn7
• Network: https://wa-biz-cfn.s3-us-west-2.amazonaws.com/wa_ent_net.yml?versionId=rSNKu7R_4LccpMDkEAstdWiRogj8e4dd

Dependencies/Prerequisites

N/A

Changelog

• Security improvements were made

Release 2.3.3

Template URLs

• Enterprise: https://wa-biz-cfn.s3-us-west-2.amazonaws.com/wa_ent.yml?versionId=jnUkOxCK0d.PKuI50esojEJuYXsQ7HiQ
• DB: https://wa-biz-cfn.s3-us-west-2.amazonaws.com/wa_ent_db.yml?versionId=W8wVUEc4qrdK4wEycvkKArmfLhxbd3dF
• Lambda: https://wa-biz-cfn.s3-us-west-2.amazonaws.com/wa_ent_lambda.yml?versionId=ltvjuVbzyk02hF8X4FnQL4WTGLQmwWPb
• Network: https://wa-biz-cfn.s3-us-west-2.amazonaws.com/wa_ent_net.yml?versionId=WmOUyj8x0nvGT3k0X7Oc1KGZ3_puX.En

Dependencies/Prerequisites

N/A

Changelog

• All CFN templates are now available in the new S3 bucket
• EC2 instance is now launched from a marketplace CentOS 7 AMI
• Removed unsupported EC2 instance type from the business API client template
• EC2 instance is now equipped with cron jobs for maintenance work (Webapp/Coreapp log rotate, ECS agent update)
• Use General Purpose SSD as the RDS instance storage in staging environment, now it’s the same as production environment
• Removed unused CloudWatch alarms

Release 2.3.1

Template URLs

• Enterprise: https://s3.amazonaws.com/wa-ent-cfn/wa_ent.yml?versionId=2xaTm9dKCdjmuxMKTZOfQI_o9iw.bBTK
• DB: https://s3.amazonaws.com/wa-ent-cfn/wa_ent_db.yml?versionId=tq8ZXaK30IIdlWhF3bevI2tCi5nIlFs6
• Lambda: https://s3.amazonaws.com/wa-ent-cfn/wa_ent_lambda.yml?versionId=IZykZHXo._QyKHPZKDffLB0ISJPfPevr
• Network: https://s3.amazonaws.com/wa-ent-cfn/wa_ent_net.yml?versionId=X51Ww5KtgjcbTwBrn_C3C0m5Sko150f3

Dependencies/Prerequisites

N/A

Changelog

• Support for new regions (Seoul, Singapore & Tokyo)

Known Issues