Philip BauerStarzel.de

MigrationsUpgrades

Relaunches

irc & github: pbauertwitter: StarzelDe

"I'm not sure we can launch without the preview-button."

Align Expectations

Communication and Project-Management

Update

Upgrade

Migration

Redesign

Rewrite

Relaunch

if len(terms) >= 2: print("It's a relaunch!")

• Ease Development

• Cool new Features

• Learn new Things

Why devs want to upgrade

Selling migrations

• Design

• Functionality

• Usability

• Speed

• TinyMCE in IE9

Which will it be?

• What about the content?

• What about the design?

How to migrate

• Make a Plan

• Make generous Timeline

• Present Changes before they happen

• Know the Upgrade-Guide

• Migrate your Code

• Migrate Add-ons

• Lot‘s of Disk-Space

• /tmp

• Keep Original for Comparison

• Make Snapshots

Pittfalls

• Remove Customisations

• Cleanup Add-ons & Design

• Clear & Rebuild

• Copy DB to new Buildout

• Startup

• Fix all Errors

• Document

• Disable irrelevant stuff

• Remove obsolete stuff

• Work hard

• Migrate the DB

• Integrate Customisations

• Write Migration-Steps

• Automate almost Everything

• collective.upgrade

• ftw.upgrade

Test the Hell out of it

Add shiny new stuff

Repeat

Challenges and Pitfalls

• The customer

• Your big mouth

• Design

• Legacy

• Multilingual

• Relations

Lessons

• Bad Communication and PM kill Projects

• Every Case is different

• Every non-trivial Upgrade should be approached as a Relaunch

• Don‘t experiment

Questions

• How do you estimate time & cost?

Philip BauerStarzel.de

irc & github: pbauertwitter: StarzelDe