# Backend Services

## Backend Services Updates (2024)

### Service Incidents

#### December 12th, 2024 - AWS Cognito Incident

* Login issues occurred in US-EAST-1 region (6:30–8:30 PM MST)
* Impact:
  * Symbol uploads temporarily affected
  * Crash reporting continued functioning normally
  * AWS reported full recovery
  * Active monitoring throughout incident

### Authentication System Updates

#### January 2024

* Enhanced SSO features
  * Added SSO integrations tab
  * Improved enterprise user management
  * Enhanced MFA controls for company-wide settings

### Storage & Infrastructure Updates

#### October 2024

* Increased default crash post size limit from 20 MB to 50 MB
* Enhanced symbol server architecture
  * Added username/password authentication support
  * Improved version retirement system

#### September 2024

* Migrated to new php8 bucket
* Enhanced database query performance
* Improved storage optimization for crash attachments

### Integration System Updates

#### July 2024 - Slack Integration

* OAuth token refresh implemented
* Enhanced security measures
* Required reauthorization for continued functionality

#### February 2024

* Enhanced Symbol Server Integration
  * Added support for .elf and .self symbol uploads
  * Improved symsrv uploads for dSYMs

### Data Management Updates

#### May 2024

* Enhanced symbol server capabilities
  * Added support for prx and sprx formats
  * Improved handling of auth errors
  * Optimized symbol file searching

#### March 2024

* Improved data routing system
* Enhanced crash data processing
* Updated stackKey implementation in CrashDetails

### Authentication System Migration (August 4th, 2023)

* Migrated from Auth0 to AWS Cognito
* Required password reset for all users
* Google and GitHub login users unaffected
* Email notifications sent to all users with reset instructions

### Security Updates (April 11th, 2023)

* Discontinued support for TLS 1.0 and TLS 1.1 protocols
* Required upgrade of symbol upload utility (SendPdbs) to latest version
* Impact: Older versions of SendPdbs no longer supported

### System-Wide Updates (2023)

* Improved crash type detection and reporting
* Enhanced crash data handling for various platforms
* Better support for different crash report formats

### Service Infrastructure Updates

#### December 2023

* Implemented increased password security requirements
  * Minimum length: 14 characters for new Cognito authenticator

#### March 2023

* Added improved thread name support for Windows crash reports
* Enhanced crash reporting system to display thread names alongside Thread IDs

#### January 2023

* Legacy Systems Deprecation
  * Removed legacy account pages
  * Streamlined authentication workflows

### Data Storage Updates

#### June 2023

* Enhanced storage system
  * Added storage usage tracking on billing page
  * Improved attachments cache invalidation
  * Implemented new file handling system for crash reports

#### May 2023

* S3 Symbol Server Updates
  * Improved symbol storage architecture
  * Enhanced symbol retrieval system
  * Added support for increased file sizes

## Security Advisory Notices

### TLS Protocol Update (January 2023)

NOTICE: Update to the latest version of SendPDBs required before January 1st, 2023

* TLS 1.0 and 1.1 protocols deprecated
* SendPdbs v2.3.0.0 required for TLS 1.2 compatibility
* Older versions ceased functioning after January 1st, 2023
* Available on downloads page for immediate update

### Authentication Updates

* Implementation of enhanced security measures
* Movement toward standardized OAuth processes
* Improved token handling and session management

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