Deep dive: State of Drupal 9

@gaborhojtsy   @amberhimesmatz

Slides are open source

(CC BY-NC-SA 2.5)

Created by @gaborhojtsy at @acquia

Thanks to @amberhimesmatz, @svettes,
@kristen_pol, @dan2k3k4 for improvements

Review links, check out speaker notes and present your own from slides.com/gaborhojtsy/state-of-drupal9

Amber Matz

Osio Labs / Drupalize.me

Co-maintainer of experimental core module Help Topics.


Contact me at @amberhimesmatz

 

Gábor Hojtsy

Acquia

Initiative coordinator for Drupal 9.
Drupal contributor since 2003, committer since 2007.

 

Contact me at @gaborhojtsy

Who is using Drupal 7?

Drupal 7 to 8

Rebuild from Drupal 7 to 8/9

Upgrade Status

Drupal Module Upgrader

Migrate Suite

Improvements with Drupal 9

  • Drupal Module Upgrader rules are now Drupal 8 and 9 compatible
     
  • Migrate Multilingual core module became stable in Drupal 8.9.0 and
    Drupal 9.0.0
2020 2021 2022 2023 2024

Drupal 7 security and
bug fix support

Vendor extended commercial
support for Drupal 7

Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
Q1 Q2 Q3 Q4
7.71 7.x 7.x 7.x 7.x

Innovation is different from Drupal 8 onwards

Drupal 7 to 8

Drupal 8 to 9 to 10

Semantic versioning

Scheduled releases

Experimental projects

Why Drupal 9 then?

2020 2021 2022 2023 2024
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
Q1 Q2 Q3 Q4

Symfony 3 End of Life

8.9
9.0 9.1 9.2 9.3
9.4

Symfony 4 End of Life

Drupal 9 security and
bug fix support

Drupal 8 security and
bug fix support

Drupal 10 security and
bug fix support

10.0 10.1 10.2 10.3

Deprecation processes

Drupal 8 to 9 to 10

...

New solution
Deprecated
Symfony 3.4
Deprecated

8.9 API

Deprecated
New solution
New solution
Symfony 4.4

9.0 API

New solution
Symfony 4.4
New solution
Deprecated
Symfony 3.4
Deprecated

8.7 API

8.9 API

New solution
New solution
Deprecated
Symfony 3.4
Deprecated
Deprecated

Drupal 9.0 API =
Drupal 8.9 API minus
deprecated parts
plus third party dependencies updated

New solution
Symfony 4.4

9.0 API

New solution
Symfony 4.4
New solution
Deprecated
Symfony 3.4
Deprecated

8.9 API

Deprecated
New solution

Drupal 8 code not using deprecated APIs will continue to work on Drupal 9.

New solution
Symfony 4.4

9.0 API

New solution
Symfony 4.4
$ composer create-project drupal/recommended-project:9.0.0 try9

$ php try9/web/core/scripts/drupal quick-start demo_umami

Try Drupal 9 with composer + PHP

5 steps to upgrade from Drupal 8 to 9

Ensure your environment is compatible with Drupal 9

PHP
7.3

Drush 10

MySQL 5.7.8

...

#1

Keep Drupal 8 core
up-to-date

#2

Only upgrades from Drupal 8.8 and 8.9 are supported

Update contributed projects to their latest versions

#3

Token module

Webform

type: module
name: Token
description: Provides a user interface for the Token API...
core_version_requirement: ^8.8 || ^9

8.x-1.7

Token module

Key introduced in Drupal 8.7.7
and Drupal 8.8.0

6.0.0-alpha2

Semantic versioning now available for all projects

Webform module

Top 200 projects

Remove deprecated API use in your custom projects

#4

Update core itself
to Drupal 9

#5

Recap

  1. Ensure your environment is compatible with Drupal 9
  2. Keep Drupal 8 core up-to-date
  3. Update contributed projects to their latest versions
  4. Remove deprecated API use in your custom projects
  5. Update core itself to Drupal 9

8

9

Upgrade Tools

/**
 * Sets a message to display to the user.
 *
 * [...]
 *
 * @deprecated in drupal:8.5.0 and is removed from drupal:9.0.0.
 *   Use \Drupal\Core\Messenger\MessengerInterface::addMessage() instead.
 */
function drupal_set_message($message = NULL, $type = 'status', $repeat = FALSE) {
  @trigger_error('drupal_set_message() is deprecated in Drupal 8.5.0 and will be removed before Drupal 9.0.0. Use \\Drupal\\Core\\Messenger\\MessengerInterface::addMessage() instead. See https://www.drupal.org/node/2774931', E_USER_DEPRECATED);  $messenger = \Drupal::messenger();
  if (isset($message)) {
    $messenger
      ->addMessage($message, $type, $repeat);
  }
  return $messenger
    ->all();
}

Upgrade Status

Upgrade Rector

(drupal-rector)

Covers 42% of
all issues found
in all drupal.org projects

!

Run your automated tests against Drupal 9.0.0

# drupalci.yml to add and run with Drupal 8.
build:
  assessment:
    validate_codebase:
      # Static analysis of code for @deprecated uses.
      phpstan:
        halt-on-fail: false

No tests, or not enough coverage?

dev.acquia.com/drupal9

What are the new

features of Drupal 9?

"The big deal about Drupal 9 is ... that it should not be a big deal"

Dries Buytaert

First release with new features is 9.1.0 on

December 2, 2020

Summary

  1. Drupal 7 to 8/9 is the last big step

    • Vendor Extended Support is provided until end of 2025

  2. Drupal 8 to 9 is the easiest upgrade in a decade

    • Keep up with Drupal 8 core and contributed projects

    • Remove your own deprecated API use with tools

    • When all components are ready, upgrade to 9

    • You are getting ready in your Drupal 8 site

  3. ​​​Drupal 9 will continue to get exciting new features

Read more and discuss

Drupal 9 landing page: drupal.org/9

Status of contrib projects: dev.acquia.com/drupal9

 

Ask questions: drupal.slack.com #d9readiness channel

Slack meetings every other Monday at 7pm UTC

Thanks!

@gaborhojtsy @amberhimesmatz

Review links, check out speaker notes and present your own from slides.com/gaborhojtsy/state-of-drupal9

Evaluate this session at www.surveymonkey.com/r/
DCGlobal20SessionEval?title=DeepDiveD9&id=30513

Contribute with us all week at
contrib2020.getopensocial.net

2020 2021 2022 2023 2024
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
Q1 Q2 Q3 Q4
8.9
9.0 9.1 9.2 9.3
9.4

Drupal 9 security and
bug fix support

Drupal 8 security and
bug fix support

Drupal 7 security and
bug fix support

Vendor extended commercial
support for Drupal 7

Drupal 10 security and
bug fix support

10.0 10.1 10.2 10.3