## WEBPACK 5 WHY BREAKING CHANGES? A CHANGELOG ONLY TELLS HALF OF THE STORY TOBIAS KOPPERS ## TOBIAS KOPPERS • GITHUB: @sokra • TWITTER: @wSokra • 2012: I CREATED WEBPACK. • SINCE 2017: I WORK FULL-TIME WEBPACK 5 IS COMING. • OH NO THERE ARE BREAKING CHANGES. • THIS MAY BREAK MY BUILD. • I NEED TO INVEST TIME TO FIX IT. • WHY ARE THERE BREAKING CHANGES ANYWAY...? ## THE "WHY" • THIS TALK IS BREAKING CHANGES • BONUS: YOU GET TO KNOW THE BREAKING CHANGES. JUST TO BE PREPARED. • BONUS: YOU SEE THE BENEFITS OF THESE CHANGES ## MAJOR RELEASING - PEOPLE TEND TO DISLIKE BREAKING CHANGES • NOBODY

13.1 Incompatible API changes with version 6.0 ..... 423 13.2 Incompatible API changes with version 5.x ..... 424 13.3 Incompatible API changes with version 5.0 ..... 424 13.4 Incompatible API changes 13.5 Incompatible API changes with version 4.2 ..... 429 13.6 Incompatible API changes with version 4.1 ..... 430 13.7 Incompatible API changes with version 4.0 ..... 431 13.8 Incompatible API changes 13.9 Incompatible API changes with version 3.1 ..... 434 13.10 Incompatible API changes with version 3.0 436 13.11 Incompatible API changes with version 2.2 436 13.12 Incompatible API changes with

Django’s test suite for the second time ■ Writing Documentation ■ Previewing your changes ■ Committing the changes in the patch ■ Pushing the commit and making a pull request ■ Next steps ## • Using raw SQL queries Django is running? ■ Can I use Django with a pre-existing database? If I make changes to a model, how do I update the database? ■ Do Django models support multiple-column primary keys automatically reloads Python code for each request as needed. You don’t need to restart the server for code changes to take effect. However, some actions like adding files don’t trigger a restart, so you’ll have to

for integration with the front-end development environment. See below for a more detailed list of changes. ## Coroutines (experimental) The key new feature in Kotlin 1.1 is coroutines, bringing the support different package names for Java. Therefore, switching to the new artifacts will not require any changes to your source code. Another change made to ensure compatibility with the new module system is removing stability and backward compatibility of code: Kotlin compatibility policy says that "breaking changes" (e.g., a change which makes the code that used to compile fine, not compile anymore) can be

Language changes ..... 1986 108.3 Compiler/Runtime improvements ..... 1987 108.4 Command-line option changes ..... 1987 108.5 Multi-threading changes ..... 1987 108.6 Build system changes ..... 1987 New library functions ..... 1987 108.8 New library features ..... 1988 108.9 Standard library changes ..... 1989 108.10 Deprecated or removed ..... 1991 108.11 External dependencies ..... 1991 a "point" to one array $ [1,2,3] $ in memory. In contrast, an assignment a[i] = value changes the contents of the array, and the modified array will be visible through both the names a and b:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2693 4.1.4 Contributing your changes to pandas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2694 4.1.5 Tips for a successful pandas documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2719 4.3.4 Previewing changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2720 4.4 Contributing vs. in place operations Most pandas operations return copies of the Series/DataFrame. To make the changes “stick”, you’ll need to either assign to a new variable: sorted_df = df.sort_values("col1") or overwrite

Triggers ..... 1289 39.1. Overview of Trigger Behavior ..... 1289 39.2. Visibility of Data Changes ..... 1292 39.3. Writing Trigger Functions in C ..... 1293 39.4. A Complete Trigger Example Memory Management ..... 1511 47.4. Transaction Management ..... 1521 47.5. Visibility of Data Changes ..... 1524 47.6. Examples ..... 1524 48. Background Worker Processes ..... 1528 49. Logical Message Fields ..... 2460 55.9. Logical Replication Message Formats ..... 2462 55.10. Summary of Changes since Protocol 2.0 ..... 2471 56. PostgreSQL Coding Conventions ..... 2473 56.1. Formatting

☐ Concepts ☐ Lambda Expression Changes • [=, this] as Lambda Capture • Templated Lambda Expressions • Pack Expansion in Lambda Captures ☐ constexpr Changes • virtual functions • union, try/catch try/catch, dynamic_cast, typeid • allocations • constexpr string & vector ☐ Concurrency Changes • Atomic Smart Pointers • Joining & Cancellable Threads • The C++20 Synchronization Library  "How C++20 Changes the Way We Write Code" -- Timur Doumler Friday, September 18 • 12:00

translations or suggest translations by default. Only registered users are allowed to actually save changes, and are credited for every translation made. You can register by following a few simple steps: translation, translators will find suggestion made by others, to be accepted (✓), accepted with changes (☐), or deleted (☐). ## Plurals Words changing form to account of their numeric designation are Memory. Glossary Displays terms from the project glossary used in the current message. Recent changes List of people whom have changed this message recently using Weblate. Project Project info like

log 39 7.1 Incompatible API changes with version 3.2 39 7.2 Incompatible API changes with version 3.1 40 7.3 Incompatible API changes with version 3.0 41 7.4 Incompatible API changes with version version 2.2 42 7.5 Incompatible API changes with version 2.1 42 8 License information 44 9 Classes (interfaces) 45 9.1 IAppliance 45 9.1.1 Attributes 46 9.1.2 createVFSExplorer 47 9.1.3 getWarnings setprop config/user=root If you made any change, don’t forget to run the following command to put the changes into effect immediately: svcadm refresh svc:/application/virtualbox/webservice:default If you forget