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Streaming upload path removed in Flow 25 — getParts() buffers entire upload before streaming starts

Status: Open.

#24828 In vaadin/flow;

· muhammetaltindal opened on Jun 26, 2026

PWA standalone: blank screen after frontend bundle rebuild due to mid-load service worker takeover causing 404

Status: Open.

#24800 In vaadin/flow;

· joelpop opened on Jun 24, 2026

vaadin-spring: missing @Component annotation

documentation

spring

Status: Open.

Task

#24796 In vaadin/flow;

· kklein-celera opened on Jun 24, 2026

PiT 25.2: Stale vaadin.ts breaks Vite after Vaadin version upgrade

Impact: Low

Severity: Minor

workaround

Status: Open.

Bug

#24702 In vaadin/flow;

· manolo opened on Jun 19, 2026

Enhance concurrency in VaadinSession

Status: Open.

Feature

#24701 In vaadin/flow;

· OriginalFelix opened on Jun 19, 2026

Effect can lead to exception, if "isInitialRun" encapsulates effect call

documentation

signals

Status: Open.

Task

#24664 In vaadin/flow;

· stefanuebe opened on Jun 16, 2026

React component is rendered twice in dialog when using Vaadin 25

Impact: Low

react

Severity: Major

Status: Open.

Bug

#24660 In vaadin/flow;

· MichaelPluessErni opened on Jun 16, 2026

Change Push to be opt-out feature instead of opt-in in Vaadin 26

needs design

v26

Status: Open.

Feature

#24577 In vaadin/flow;

· TatuLund opened on Jun 11, 2026

Make PWA Annotation programatically configurable

pwa

Status: Open.

Feature

#24559 In vaadin/flow;

· OriginalFelix opened on Jun 9, 2026

Gradle 9.x to support Java 25+

gradle

Status: Open.

Task

#24521 In vaadin/flow;

· ZheSun88 opened on Jun 4, 2026

Hackathon 25.2: feature add ValueSignal#fireChange() for the notify-without-modify pattern

signals

Status: Open.

Feature

#24490 In vaadin/flow;

· manolo opened on Jun 1, 2026

Hackathon 25.2: feature HasValue::bindDisplayValue(Signal<V>) for one-way binding to display fields

Status: Open.

#24488 In vaadin/flow;

· manolo opened on Jun 1, 2026