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What's actually new in AQA GCSE Computer Science this year

If your child has just started Year 11, their GCSE Computer Science course is running on a slightly different specification than the one older siblings, or last year's Year 11, sat. Here's what's actually changed, in plain terms, and what — if anything — you need to do about it.

The short version

AQA published an updated version of the specification (version 1.3) for first teaching from September 2025, with first exams in summer 2027. That means this year's Year 11 is the first full cohort sitting the updated content. AQA's own change document lists three areas affected.

Networking content has been trimmed significantly

This is the biggest change. Your child no longer needs to:

  • Describe LAN topologies (star or bus) — this content has been removed entirely.
  • Know Ethernet or Wi-Fi as named protocols, or how UDP and FTP work — all four have been dropped from the list of protocols students must know.

The transport layer content now covers only TCP, not "TCP and UDP" as before. The core idea of a network — layers, addressing, how data moves — is unchanged; it's specifically the protocol-by-protocol detail that's been trimmed back.

Two smaller changes

  • Systems architecture: the specification no longer names the "Von Neumann architecture" specifically when describing CPU components, and optical storage (CDs, DVDs) has been dropped as a type of secondary storage to know — solid state and magnetic storage remain.
  • Representing sound: a small wording simplification, with no change to what's actually taught.

What this doesn't mean

It doesn't mean the exam has become harder, easier, or fundamentally different in structure. The core of AQA 8525 — programming, computer systems, algorithms, data representation — is unchanged. This is a content refresh, not a new qualification.

It also doesn't affect anyone who already has their GCSE Computer Science result. If your older child sat the exam in a previous summer, this doesn't change anything for them.

Something useful to do with this

It's worth a two-minute check with your child's teacher: confirm they're teaching to specification version 1.3, and ask whether the networking topic has been updated to drop the removed content yet. Most schools will already have this in hand, but it's a reasonable, non-awkward question to ask at a parents' evening or by email — and it shows you're paying attention without needing to understand the technical content yourself.

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