v4.0.0 - 2020-12-23

Significant additions, better introduction and grouping improvements

Added

• IAM, Authentication and Authorization; under Security
• Language-theory knowledge, under a new "Other general technical knowledge" section (includes regex)
• Stack vs Heap, under Data Structures
• Non-relational databases, under back-end development
• Message brokers, under back-end development
• Pagination, under front-end development
• Cryptographic protocols (TLS, SSL), in Security
• Relevant internet protocols, in Architecture
• Service Mesh, in Architecture
• Data modeling, in Architecture
• Processes vs Threads, under Infrastructure
• Web servers and reverse proxies, under Infrastructure
• Monitoring and Observability, under Infrastructure
• Immutability, in Functional Programming, within Principles
• Client-side rendering (CSR) vs server-side rendering (SSR), in front-end development
• Browser events, under front-end development
• Profiling, under Optimization
• Artifact repositories and image registries, in DevOps practices

Changed

• Improved introduction to better reflect the importance of evergreen skills and portable technical knowledge
• Improved license note
• Grouped the "be rational and facts-based" entry into Critical Thinking, with link to its definition
• Renamed "master-slave" to "Controller-agent / Primary-replica"
• Improved Peer Code Review best practice adding TL;DR note
• Links for "control structures" and "boolean algebra"
• Further clarifications in Clean Code section
• Split Architecture and Infrastructure
• Monolith vs Microservices, in Architecture
• Concurrency is now part of "Other general technical knowledge"
• Replaced "system tests" with "end-to-end tests"

Removed

• Scaling and optimization section. Optimization is now under "Other general technical knowledge" and the scaling-related bullets are part of Infrastructure

v3.0.0 - 2020-11-30

Grouping tech vs non-tech skills; plus adding multiple links and style improvements

Added

• Specific link on the importance of proper use of threads in chat apps
• Link on Pair Programming best practices
• Link to Agile Software Development principles
• Link on the importance of empathy
• Link to the example of time estimates on "avoid creating false expectations"
• Multiple new problem-solving skills, with links
• Links on SOLID and GRASP
• Added package managers and dependency hell to "Dependency management"
• Added link on "Continuous Delivery vs Deployment"
• Enhanced "Infrastructure as code" with configuration and docs. Added link to "Everything as code" article

Changed

• Top level grouping now divided between technical and non-technical skills
• Re-arranged "Development process" and "Technical collaboration"
• Most abbreviations now have the full meaning next to them
• Links are now set as text anchors in most cases (instead of separate in parentheses as before)
• Fixed some typos

v2.0.0 - 2019-01-19

Extended sections, created new & more reference links

Added

• Architecture and Infrastructure section
• Security section
• "Semantic versioning", included in the "Clean Code" section
• "Dependency management", in the "Collaboration and SCM" section
• "Control structures and boolean algebra", into "Principles"
• "Imperative vs declarative programming", included in the principles section, with a reference article

Changed

• Back-end section: minor changes to existing items and added some new concepts (e.g. "session handling" and "database design")
• Splitted "Principles" section, creating also "Data Structures"
• Included a link to e-mail and chat (Slack) communication best practices
• Linked to article about the productivity cost of interruptions

v1.0.0 - 2018-12-30

First release

• First draft including 3 groups of skills: core (aka "soft"), innovation & (self-)management
• Table of contents
• Introduction, purpose and work-in-progress disclaimer
• Contributing guidelines, code of conduct and templates for PRs and issues