After the whole skinny jeans and side part debacle, you're probably sick of Gen Z telling you what's in and out of fashion, and well, we don't blame you. But since we're a generation that enjoys sharing our thoughts, we're back for more.

Over the past few years, influencers have curated the perfect feeds on Instagram. They've used certain filters and uploaded photos in a specific order to paint a highlight reel of the picture-perfect life.

Watch the trailer for Social Squad, Mamamia's podcast that peers into the life of influencers. Post continues after video.

But in 2021, that's all changed.

Over the past few months, we've noticed a new set of unwritten rules emerging on Instagram. And they go against everything we've come to expect of the app.

From photo dumps to "casual posting", here are the five new rules you need to know about.

1. No filters.

Friends, it's time to delete the many editing apps we've downloaded over the years; because in 2021, it's all about "casual posting".

The trend, which actually started on TikTok under the tag by the same name, is all about making your Instagram feed look a little less curated and a little more 'messy'.

Think very raw images that might've only had the brightness tweaked, like these below.

We have a feeling this trend will be popular this year because it feels more relatable to followers.

After so many years of seeing ultra-curated feeds, it's a sweet relief to see their photos looking more like real life (or what we assume their real life looks like).

We're into it.

2. Use photo dumps.

This next trend follows a similar vein to the one above.

Photo dumps are basically where you take a collection of your raw images (usually including pretty locations, food and outfit pics) and pop them into one post. For example, if you took plenty of photos over the weekend or on your trip away, pop them into one post for your followers to see what you've been up to. No need to worry about the order either, because life doesn't happen in an order - right? Think of it like a visual diary.

And of course, don't add filters!